Free Everyday Calculators
The quick-use tools you reach for every day — tip & bill split, sale discounts, BMI, calories, compound interest, currency, and more. Works in any country, any currency, no signup.
18+ curated calculators for the things you actually calculate every day — shopping discounts, restaurant tips, health checks, and money questions. All tools run in your browser, support multiple currencies, and need zero signup.
What Do You Need to Calculate?
- Shopping sale? → Discount Calculator (% off, double discounts, savings)
- Splitting a bill? → Tip Calculator (15/18/20%, multi-currency, per-person)
- Health check? → BMI Calculator + Calorie Calculator
- Quick math? → Percentage Calculator (X% of Y, increase/decrease, formulas)
- Savings or loan? → Compound Interest + Loan Payment
- Sending money abroad? → Currency Converter (150+ currencies, live rates)
🛒 Shopping & Dining
Discount Calculator
Sale price after % off. Compare double discounts, see total savings before checkout.
Calculate →Tip Calculator
Restaurant tip + bill split in USD, EUR, GBP, INR, JPY. Country tipping guides included.
Calculate →Sales Tax Calculator
Add or remove sales tax / VAT from any purchase price. US state rates and international.
Calculate →Percentage Calculator
What is X% of Y? Percentage increase, decrease, difference. Step-by-step formulas shown.
Calculate →Markup & Margin Calculator
Cost to selling price. Markup %, profit margin, and break-even for sellers and freelancers.
Calculate →Currency Converter
150+ currencies with live exchange rates. USD, EUR, GBP, INR, JPY and more.
Calculate →💪 Health & Fitness
BMI Calculator
Body Mass Index from height + weight. WHO categories, healthy range, metric and imperial.
Calculate →Calorie Calculator
Daily calorie needs for weight loss, maintenance, or gain. Mifflin-St Jeor equation + macros.
Calculate →Calories Burned Calculator
Calories burned during running, walking, cycling, swimming. 12+ activities with MET values.
Calculate →Body Fat Calculator
Estimate body fat % using Navy method or skinfold. Lean mass and fat mass breakdown.
Calculate →Pregnancy Due Date
Due date and trimester timeline from last period or conception date. Week-by-week milestones.
Calculate →BAC Calculator
Blood alcohol estimate from drinks, weight, and time. Time-to-sober and legal limit check.
Calculate →💰 Money & Interest
Compound Interest Calculator
See savings grow with daily, monthly, or annual compounding. Includes monthly deposit option.
Calculate →Simple & Compound Interest
Simple + compound interest for any currency. FD, savings, loans with flexible compounding.
Calculate →Loan Payment Calculator
Monthly payment, total interest, amortization schedule for any loan type. Multi-currency.
Calculate →Mortgage Calculator
PITI monthly payment with PMI, taxes, insurance. Conventional, FHA, VA loan support.
Calculate →Investment Calculator
Investment growth with compound interest, inflation adjustment. Lump sum and recurring.
Calculate →Gold Price Calculator
Gold value by weight and purity (24K/22K/18K). Grams, ounces, tolas to USD, INR, EUR.
Calculate →Why Everyday Calculators?
Most calculator sites bury the tools you need behind 200+ options. This page curates the 18 tools people actually use every week — at restaurants, during sales, for health tracking, and for quick money questions.
- • Works in any country and currency
- • Zero signup — just open and calculate
- • All calculations run in your browser
- • Mobile-friendly for on-the-go use
- • No data stored or sent to servers
- • Step-by-step formulas shown
Quick Reference — Common Everyday Calculations
| Situation | Calculator | Quick Formula |
|---|---|---|
| 20% tip on $85 bill | Tip Calculator | $85 × 0.20 = $17 tip |
| 30% off a $120 jacket | Discount Calculator | $120 × 0.70 = $84 |
| BMI for 70kg, 175cm | BMI Calculator | 70 ÷ 1.75² = 22.9 (healthy) |
| $10K at 5% for 3 years | Interest Calculator | $10K → $11,576 (monthly) |
| What is 15% of 240? | Percentage Calculator | 240 × 0.15 = 36 |
| 100 USD to EUR | Currency Converter | Live rate × $100 |
All Universal Calculators
Mortgage Calculator: Estimate Monthly Payments & Amortization
Free mortgage calculator 2026. PITI, amortization, PMI. Supports conventional, FHA, VA loans. Perfect for homebuyers.
Mortgage Payoff Calculator with Extra Payments - Save Thousands 2026
Free mortgage payoff calculator 2026. Extra payments, biweekly, lump sums. See interest savings & early payoff date.
Car Loan Calculator
Calculate car loan monthly payments, total interest, and loan term. Compare auto loan rates, include trade-in value, and estimate total vehicle financing costs with taxes and fees.
Personal Loan Calculator
Calculate personal loan EMI, total interest payable, and repayment schedule. Compare unsecured loan offers, see monthly installments, and plan your debt repayment effectively.
Interest Calculator - Simple & Compound Interest Calculator 2025
Simple + compound interest calculator 2026. INR/USD/EUR — FD, RD, savings, loan interest with daily/monthly/annual compounding.
Compound Interest Calculator
Calculate compound interest on investments with daily, monthly, quarterly, or annual compounding. See how your savings grow over time with interest-on-interest calculations and detailed charts.
Investment Calculator
Calculate investment returns, growth, and future value with compound interest. Analyze lump sum investments, SIP, or recurring deposits with inflation adjustment and tax implications.
Stock Calculator
Calculate stock profit, loss, return percentage, and capital gains. Analyze buy/sell prices, quantity, brokerage fees, and taxes for accurate stock trading calculations.
Cryptocurrency Calculator
Calculate crypto investment returns, conversions, and profit/loss. Track Bitcoin, Ethereum, and altcoin portfolio value with real-time price data and trading fee calculations.
Retirement Calculator
Plan retirement savings and estimate income needs. Calculate 401k, pension, Social Security, and investment growth to determine if you can retire comfortably at your target age.
401k Calculator
Free 401k calculator 2026. Employer match, contribution limits, catch-up. See retirement readiness & 4% rule income.
Discount Calculator
Calculate discount percentage, final sale price, and savings amount. Find out how much you save on discounted items and compare multiple discounts during shopping.
Markup Calculator
Calculate markup percentage, selling price, and profit from cost. Determine retail pricing strategy with gross profit calculations for business and ecommerce.
Margin Calculator
Calculate profit margin, gross margin, and net margin percentages. Analyze business profitability with revenue, cost, and markup calculations for pricing decisions.
Tip Calculator
Advanced multi-currency tip calculator with global tipping guides. Calculate 10%, 15%, 18%, 20% gratuity for restaurants, delivery, tax calculation, bill splitting, and per-person amounts. Supports USD, INR, EUR, GBP, JPY, AUD, CAD, and more currencies with country-specific tipping culture recommendations.
Sales Tax Calculator
Calculate sales tax amount and total price after tax. Add or remove sales tax for any US state, county, or city with current 2025 tax rates and purchase calculations.
VAT Calculator
Calculate Value Added Tax (VAT) for goods and services. Add or remove VAT at standard, reduced, or zero rates for UK, EU, and international VAT calculations.
Bitcoin Calculator
Calculate Bitcoin investment value, profit/loss, and conversions to USD, EUR, INR. Track BTC holdings, mining profitability, and satoshi conversions with live prices.
Loan Payoff Calculator
Calculate when you will pay off your loan with extra payments. Estimate interest savings, payoff date, and accelerated payment schedule to become debt-free faster.
Debt Payoff Calculator
Create debt payoff plan using snowball or avalanche method. Calculate how long to pay off multiple debts, total interest saved, and optimal payment strategy for debt freedom.
Credit Card Payoff Calculator 2025 | Debt Freedom Date Calculator
Credit card debt payoff calculator 2026. Payoff date, total interest, snowball vs avalanche, balance transfer comparison.
क्रेडिट कार्ड पेऑफ़ कैलकुलेटर इंडिया | Credit Card Payoff Calculator India
भारत में क्रेडिट कार्ड ऋण का भुगतान कितने समय में होगा, यह जानें। Calculate payoff timeline in INR. ब्याज की गणना करें और तेज़ी से भुगतान करने की रणनीतियाँ देखें।
Net Worth Calculator | Calculate & Track Your Personal Net Worth
Free net worth calculator to calculate your personal net worth instantly. Track assets and liabilities, compare to age benchmarks, and plan your financial future. See breakdowns by category, age comparisons, and get personalized insights.
Pension Calculator - Multi-Currency Retirement Income Planner 2025
Retirement pension income projection 2026. 4% rule, sustainable monthly withdrawal — INR, USD, EUR. India + global.
Gold Price Calculator
Calculate gold value by weight and purity (24K, 22K, 18K). Convert grams, ounces, and tolas to current market price in USD, INR, or other currencies for jewelry and investment.
Mutual Fund Calculator
Advanced mutual fund calculator with multi-currency support (INR/USD/EUR). Calculate SIP returns, lump sum investments, CAGR, XIRR, NAV growth, expense ratio impact, and year-by-year breakdown. Compare fund performance and optimize your investment strategy.
Commission Calculator
Calculate sales commission, earnings, and percentage rates. Compute tiered commissions, referral fees, and affiliate payouts for sales professionals and businesses.
Stocks ROI Calculator
Calculate return on investment (ROI) for stocks with dividends, capital gains, and holding period. Analyze stock performance, annualized returns, and total investment profit.
APR Calculator
Calculate Annual Percentage Rate (APR) for loans, credit cards, and mortgages. Compare APR vs interest rate, include fees, and determine true cost of borrowing.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly with personalized health insights, risk assessment, and expert recommendations. Free, accurate BMI calculator supporting metric/imperial units. Get your BMI category, healthy weight range, and action plan based on WHO standards. Perfect for weight management, health screening, and fitness tracking.
Calorie Calculator
Calculate personalized daily calorie needs for weight loss, maintenance, or muscle gain using the Mifflin-St Jeor equation. Get accurate TDEE, BMR, macro split recommendations, and realistic weight change projections based on age, gender, weight, height, and activity level. Free calorie calculator with detailed nutrition guidance.
Calorie Burned Calculator
Calculate calories burned during exercise with scientifically-validated MET values. Track running, walking, cycling, swimming calories plus 12 activities. Get weekly/monthly projections, food equivalents, and personalized weight loss estimates. Free calorie burn calculator with lbs/kg conversion.
Body Fat Calculator
Calculate body fat percentage using US Navy method, skinfold measurements, or BMI formula. Assess fat mass, lean mass, and body composition for fitness and health tracking.
Pregnancy Due Date Calculator
Free pregnancy calculator estimates due date, current week, trimester, conception date from last menstrual period (LMP). Complete week-by-week fetal development guide, baby size comparisons, prenatal appointment schedule, pregnancy symptoms tracker, and milestone timeline. Accurate gestational age calculator.
Ideal Weight Calculator
Calculate your ideal body weight using proven medical formulas. Get personalized healthy weight ranges based on your height, gender, age, and frame size.
Macro Calculator
Calculate macronutrient ratio (protein, carbs, fats) for diet goals. Get personalized macro split for weight loss, muscle gain, or maintenance with calorie and gram breakdown.
Protein Calculator
Calculate daily protein requirements for muscle building, weight loss, or maintenance. Get personalized protein intake in grams based on body weight, activity level, and fitness goals.
Carbohydrate Calculator
Calculate daily carbohydrate needs for energy, weight loss, or athletic performance. Determine optimal carb intake in grams and percentage for low-carb, balanced, or high-carb diets.
Fat Intake Calculator
Calculate daily healthy fat intake for optimal nutrition. Determine fat requirements in grams and calories based on diet type, activity level, and health goals.
Water Intake Calculator
Calculate daily water intake recommendations based on weight, activity level, climate, and health status. Stay hydrated with personalized fluid requirements in liters or ounces.
Ovulation Calculator
Calculate ovulation day, fertile window, and best days to conceive. Track menstrual cycle and predict fertility period for pregnancy planning with personalized calendar.
Workout Timer
Free online workout timer for HIIT, Tabata, circuit training, and boxing. Set custom intervals, rounds, and rest periods. Audio alerts, fullscreen mode, and preset workouts. No download required.
One Rep Max Calculator
Calculate one rep max (1RM) for weightlifting exercises. Estimate maximum strength, training percentages, and progressive overload using Brzycki, Epley, or Lombardi formulas.
Target Heart Rate Calculator
Calculate target heart rate zones for cardio exercise based on age and resting heart rate. Optimize fat burn, aerobic, and anaerobic training zones with Karvonen formula.
Conception Calculator
Calculate conception date from due date, birth date, or LMP. Estimate when baby was conceived and determine conception window for pregnancy planning.
Body Surface Area Calculator
Calculate body surface area (BSA) for medical dosing using Mosteller, DuBois, or Haycock formula. Essential for chemotherapy, drug dosing, and medical calculations.
BAC Calculator
Calculate Blood Alcohol Content (BAC) level based on drinks consumed, weight, gender, and time. Estimate intoxication level and time to sober up for responsible drinking.
Healthy Body Weight Calculator
Calculate healthy weight range for your height, age, and gender. Determine ideal weight using WHO BMI standards and multiple scientific formulas for optimal health.
Lean Body Mass Calculator
Advanced lean body mass calculator using Boer, James & Hume formulas. Calculate LBM, FFM, fat mass, muscle mass percentage with gender-specific accuracy. Includes body composition breakdown, FFMI calculator, athlete comparisons, real case studies, progress tracking, and nutrition recommendations for bodybuilding & fitness.
Percentage Calculator
Free percentage calculator online: what is X% of Y, percentage increase/decrease between two numbers, percentage difference, fraction to percent. Step-by-step formulas for shopping discounts, tips, salary raises, grades. No sign up required.
GPA Calculator
Free GPA calculator for college and high school. Calculate semester GPA, cumulative GPA on 4.0, 5.0, or 10-point scale. Weighted GPA for honors/AP courses. Convert CGPA to GPA.
CGPA to GPA Converter
Free CGPA to GPA converter for Indian students applying to US/UK universities. Convert your 10-point CGPA to 4.0 GPA scale instantly. Includes university-specific conversions (MIT, Stanford, UT Austin), percentage equivalent, and grade interpretation.
Mode Calculator
Calculate mode (most frequent value) in a dataset. Find modal value, frequency distribution, and multiple modes for statistical analysis and data interpretation.
Standard Deviation Calculator
Calculate standard deviation, variance, mean, and range for sample or population data. Measure data dispersion and variability with step-by-step statistical calculations.
Variance Calculator
Calculate variance of sample or population dataset. Measure data spread, deviation from mean, and statistical variability with population and sample variance formulas.
Random Word Generator
Generate unique random words with history tracking! English & Hindi word generator with no duplicates. Track all generated words, copy history, and get fresh vocabulary every time. Perfect for creative writing, brainstorming, and games.
Rent vs Buy Calculator
Compare renting vs buying a home with total costs, equity buildup, tax benefits, and long-term financial impact. Make informed housing decisions with detailed rent-buy analysis.
Down Payment Calculator
Calculate down payment needed for home purchase at 3%, 5%, 10%, or 20%. Determine PMI costs, loan amount, and closing costs for different down payment scenarios.
Concrete Calculator
Calculate concrete needed for slabs, footings, columns, and driveways. Estimate cubic yards, bags, and cost for construction projects with concrete volume calculations.
Home Loan EMI Calculator (India)
Calculate home loan EMI, total interest, and amortization for India (₹). Compare tenure and rates, model prepayments, and see Section 24/80C context. For US loans with taxes and insurance (PITI), use the finance mortgage calculator.
Amortization Calculator
Calculate loan amortization schedule with principal and interest breakdown by month. View payment schedule, remaining balance, and total interest paid over loan term.
Painting Calculator
Calculate paint needed for walls, ceilings, and rooms. Estimate gallons of paint, primer, and total coverage area for interior and exterior painting projects.
Temperature Converter - Celsius, Fahrenheit, Kelvin
Free online temperature converter. Convert between Celsius, Fahrenheit, and Kelvin instantly. Perfect for weather, cooking, and scientific calculations. Real-time conversion with formulas.
Length Converter - cm to inches, meters to feet, km to miles
Free online length converter. Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles instantly. Perfect for distance measurements and conversions.
Currency Converter - Live Exchange Rates | 150+ Currencies
Free online currency converter with live exchange rates. Convert between 150+ world currencies instantly. Updated hourly for accurate conversions. Perfect for travel, business, and international transactions.
Days Between Dates Calculator
Calculate exact days, weeks, months, hours, minutes, and seconds between any two dates with optional end-date inclusion.
Age Calculator - Exact Age from DOB
Find your exact age in years, months, days, weeks, hours, zodiac signs, and next birthday countdown using Indian date format.
Add or Subtract Days Calculator
Add or subtract days, weeks, months, or years from any start date with quick buttons for 30, 60, 90, 180, and 365 days.
Days Until Calculator - Event Countdown
Live countdown showing days, weeks, months, hours, minutes, and seconds until any future date with presets for Indian festivals.
Universal Unit Converter - All Units in One Tool
Free universal unit converter for temperature, length, weight, currency, volume, speed, area, time, digital storage, and pressure. Convert 150+ units instantly with real-time calculations. Features favorites, history, and live currency rates.
Image Resizer Online - Free Tool to Resize Photos
Resize images online instantly. Upload, adjust dimensions, maintain aspect ratio, and download optimized photos. Free and mobile-friendly.
Photo Compression Online - Free Image Compressor Tool
Compress photos online instantly. Reduce file size without losing quality. Free, fast, and mobile-friendly.
Remove Background from Image - Free AI Background Remover
Remove background from images instantly with our browser-based AI background remover. Unlimited free background remover with no signup required. Privacy-first client-side background remover - all processing happens in your browser, no uploads to servers. Download transparent PNGs instantly.
Free Image Converter - HEIC to JPG, WebP to PNG Online
100% free, client-side image converter. Convert HEIC to JPEG, WebP to PNG, PNG to WebP instantly. Fast, secure, no server upload. Supports HEIC, HEIF, WebP, PNG, JPEG, GIF, BMP, TIFF formats. All processing happens in your browser - your files never leave your device.
Free Online Image Editor | Brush, Undo/Redo, Before/After
Free online image editor with brush tool, undo/redo, before/after toggle. Perfect ecommerce product photos. 100% private, client-side—no uploads.
Discover Wheel - Finance Reward Wheel
Spin our free reward wheel for credit cards, loans, stocks, and free calculators. Discover finance offers, EMI calculators, and insurance quotes. Transparent discovery tool.
Need Region-Specific Tools?
Everyday Calculator FAQs
What are everyday calculators?
Quick-use tools for common daily tasks: figuring out a tip at a restaurant, checking a sale discount, calculating BMI, estimating loan payments, or converting currencies. Works in any country with no signup.
How do I calculate a restaurant tip quickly?
Enter your bill total and select a tip percentage (15%, 18%, or 20% are standard in the US). Our tip calculator shows the tip amount and per-person split. Supports USD, EUR, GBP, INR, JPY with country-specific tipping customs.
What is the formula for percentage discount?
Sale price = Original price × (1 − Discount% ÷ 100). For example, 25% off a $80 item: $80 × 0.75 = $60. The discount calculator also handles double discounts (e.g., 20% + 10% off) and shows total savings.
How is BMI calculated?
BMI = weight (kg) ÷ height (m)². A BMI of 18.5–24.9 is considered healthy by WHO standards. Our BMI calculator works with both metric (kg/cm) and imperial (lbs/inches) and shows your WHO category.
How does compound interest work?
Compound interest earns interest on your interest. Formula: A = P × (1 + r/n)^(n×t). Monthly compounding on $10,000 at 5% yields $11,576 after 3 years vs $11,500 with simple interest. Try the compound interest calculator with your numbers.
Are these calculators free to use?
Yes — 100% free, no signup, no data storage, no region restrictions. All calculations run entirely in your browser. Nothing is sent to a server. Works on mobile, tablet, and desktop.