All free online calculators for everyday life
Fast, simple calculators for finance, health, dates, percentages, units, fuel, electricity, salary, savings and more.
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Popular Calculators
Age Calculator
Calculate your age in years, months, and days.
Date Calculator
Add or subtract time from a date.
Days Between Dates
Calculate the number of days between two dates.
Percentage Calculator
Calculate percentages and percentage change.
Average Calculator
Calculate the average of numbers.
Random Number Generator
Generate a random number.
Word Counter
Count words and characters.
Character Counter
Count characters with and without spaces.
Finance Calculators
Loan Calculator
Estimate monthly loan payments.
Mortgage Calculator
Estimate monthly mortgage payments.
Compound Interest Calculator
Calculate compound growth.
Savings Calculator
Estimate savings growth.
Debt Payoff Calculator
Estimate time to pay off debt.
Salary Calculator
Convert salary by year, month, week, day, or hour.
Health & Lifestyle
BMI Calculator
Calculate body mass index.
Calorie Calculator
Estimate daily calorie needs.
Weight Loss Calculator
Estimate the daily calorie deficit needed to lose a chosen amount of weight over time.
Ideal Weight Calculator
Estimate ideal body weight from height and sex using a common formula and BMI range.
Macro Calculator
Estimate macro targets.
Water Intake Calculator
Estimate daily water intake.
Pregnancy Due Date Calculator
Estimate pregnancy due date.
Sleep Calculator
Calculate sleep cycle times.
Travel & Everyday
Fuel Cost Calculator
Estimate trip fuel cost.
Watts Calculator
Calculate electrical power in watts from volts and amps.
Electricity Cost Calculator
Estimate electricity cost.
Currency Converter
Convert common currencies using sample rates.
Unit Converter
Convert common units.
Time Zone Converter
Convert between simple time zones.
Tip Calculator
Calculate tips and split bills.
Inflation Calculator
Estimate inflation impact.
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Simple calculators, fast answers
Choose a calculator, enter your numbers and get an instant estimate. No signup required.