All Calculators
Browse every calculator and converter by category, or search for exactly what you need.
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Money & Finance
9 tools
Mortgage Calculator
Estimate monthly mortgage payments, total interest and full loan cost.
Loan Calculator
Calculate monthly payments and total interest for any fixed-rate loan.
Compound Interest Calculator
See how investments grow with compounding over time.
Simple Interest Calculator
Compute simple interest on a principal over time.
Savings Calculator
Project the future value of regular monthly deposits.
Investment / ROI Calculator
Measure return on investment and total gain.
Percentage Calculator
Find a percentage of a number, or the percent change between two values.
Discount Calculator
Find the sale price after a percentage discount.
Tip Calculator
Split a bill and calculate the tip per person.
Math & Science
8 tools
Basic Calculator
Add, subtract, multiply and divide two numbers.
Scientific Calculator
Apply trig, log, roots, powers and more to a single value.
Fraction Calculator
Add, subtract, multiply or divide two fractions.
Ratio Calculator
Simplify a ratio and express it as a decimal.
Average Calculator
Find the mean, median and sum of a list of numbers.
Exponent Calculator
Raise any base to any power.
Square Root Calculator
Find the square root of any non-negative number.
Area Calculator
Find the area of a rectangle, triangle or circle.
Date & Time
6 tools
Age Calculator
Find exact age in years, months and days from a birth date.
Date Difference Calculator
Find the time between two dates in days, weeks and months.
Days Between Dates
Count the exact number of days between two dates.
Add / Subtract Days Calculator
Add or subtract days, weeks or months from any date.
Time Duration Calculator
Find the duration between two times of day.
Business Days Calculator
Count working days between two dates, excluding weekends.
Unit Converters
8 tools
Length Converter
Convert between metric and imperial length units.
Weight Converter
Convert between grams, kilograms, ounces and pounds.
Temperature Converter
Convert between Celsius, Fahrenheit and Kelvin.
Area Converter
Convert between m², ft², acres, hectares and more.
Volume Converter
Convert between liters, gallons, cups and more.
Speed Converter
Convert between km/h, mph, m/s and knots.
Data Storage Converter
Convert between bytes, KB, MB, GB, TB and binary units.
Time Converter
Convert between seconds, minutes, hours, days and more.
Automotive
4 tools
Fuel Cost Calculator
Estimate the cost of fuel for a trip from distance and consumption.
Fuel Consumption Calculator
Find your car's fuel economy in L/100km, km/L and MPG.
MPG ↔ L/100km Converter
Convert between MPG and liters per 100 km.
EV Charging Cost Calculator
Estimate the cost to charge an electric vehicle.
Home & Construction
4 tools
Health & Fitness
4 tools
Business & Work
4 tools
Education
2 tools
Food & Cooking
2 tools
Technology
2 tools
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