Conversions Calculators
Convert between units of length, weight, temperature, volume, speed, number systems, and more.
Showing 48 of 48 calculators
Meters → Feet
Convert meters to feet and inches instantly with our free online calculator. Accurate metric to imperial length conversion with reference table.
KM → Miles
Convert kilometers to miles instantly with our free online calculator. Accurate metric to imperial distance conversion with a handy reference table.
KG → LBS
Convert kilograms to pounds instantly with our free online calculator. Accurate metric to imperial weight conversion with a useful reference table.
°C → °F
Convert Celsius to Fahrenheit instantly with our free online calculator. Accurate temperature conversion with a quick reference table for common values.
Feet → Meters
Convert feet to meters instantly with our free online calculator. Accurate imperial to metric length conversion with a handy reference table included.
CM → Inches
Convert centimeters to inches quickly with our free online calculator. Get accurate metric to imperial conversions with a helpful reference table.
Inches → CM
Convert inches to centimeters instantly with our free online calculator. Precise imperial to metric conversion with a quick reference table included.
Miles → KM
Convert miles to kilometers quickly with our free online tool. Accurate imperial to metric distance conversion with a useful reference conversion table.
Yards → Meters
Convert yards to meters easily with our free online calculator. Get precise imperial to metric length conversions with a quick reference conversion table.
MM → Inches
Convert millimeters to inches instantly with our free calculator. Precise metric to imperial conversion for engineering and everyday measurements.
LBS → KG
Convert pounds to kilograms quickly with our free online calculator. Precise imperial to metric weight conversion with a helpful reference table.
OZ → Grams
Convert ounces to grams instantly with our free online calculator. Accurate imperial to metric weight conversion with a practical reference table.
Stone → KG
Convert stone to kilograms instantly with our free online calculator. Accurate UK imperial to metric weight conversion with reference table included.
°F → °C
Convert Fahrenheit to Celsius instantly with our free online calculator. Accurate temperature conversion with a handy reference table for common temps.
Liters → Gallons
Convert liters to gallons instantly with our free online calculator. Accurate metric to US liquid volume conversion with a practical reference table.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin instantly with our free online temperature converter.
Weight Converter
Convert between grams, kilograms, ounces, pounds, stone, and tons with this free weight converter.
Length Converter
Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles instantly.
Volume Converter
Convert between milliliters, liters, gallons, quarts, pints, cups, tablespoons, and teaspoons easily.
Area Converter
Convert between square feet, square meters, acres, hectares, and other area units instantly.
Speed Converter
Convert between mph, km/h, m/s, knots, and ft/s with this free online speed converter.
Pressure Converter
Convert between psi, bar, atm, Pascal, kPa, mmHg, and inHg with this free pressure converter.
Energy Converter
Convert between joules, kilojoules, calories, kilocalories, watt-hours, kWh, and BTU instantly.
Power Converter
Convert between watts, kilowatts, horsepower, BTU/h, and ft-lb/s with this free power converter.
Force Converter
Convert between newtons, kilonewtons, pound-force, kilogram-force, and dynes instantly.
Torque Converter
Convert between newton-meters, foot-pounds, inch-pounds, and kilogram-force meters instantly.
Angle Converter
Convert between degrees, radians, gradians, and turns with this free angle converter tool.
Degrees to Radians
Convert degrees to radians instantly. Shows exact fraction of pi and decimal value.
Feet to Inches
Convert feet and inches to total inches, centimeters, and meters with this free calculator.
Grams to Ounces
Convert grams to ounces and pounds instantly with this free online weight conversion calculator.
Oz to Cups
Convert fluid ounces to cups, tablespoons, and milliliters with this free kitchen converter.
mL to Cups
Convert milliliters to cups, fluid ounces, and tablespoons with this free kitchen conversion tool.
Cups to Grams
Convert cups to grams for common cooking ingredients like flour, sugar, butter, rice, and oats.
Cubic Yard Calculator
Calculate cubic yards from length, width, and depth in feet or inches for landscaping and construction.
Byte Converter
Convert between bytes, KB, MB, GB, TB, and PB using binary (1024) or decimal (1000) base.
Download Time
Estimate file download time based on file size and internet connection speed in Mbps.
Military Time
Convert between 12-hour and 24-hour (military) time formats with this free online converter.
Date Calculator
Add or subtract days, weeks, months, or years from any date to find the resulting date.
Days Between Dates
Calculate the number of days, weeks, and months between two dates quickly and accurately.
Hours Calculator
Calculate the difference between two times in hours, minutes, and decimal hours format.
BTU Calculator
Calculate the recommended BTU for air conditioning based on room size, insulation, and climate.
Data Storage
Convert between bits, bytes, KB, MB, GB, TB, and PB in both binary and decimal systems.
Color Converter
Convert RGB color values to HSL, hex components, and CMYK approximations for design work.
Subnet Calculator
Calculate network address, broadcast address, and host range from an IP address and CIDR prefix.
Hex to RGB
Convert hex color component values to RGB decimal values for web design and development.
Epoch Timestamp
Convert Unix epoch timestamps to human-readable date components and vice versa.
Photo Print Size
Calculate print quality and maximum print dimensions from image pixel dimensions and desired DPI.
Paper Size Converter
Look up standard paper dimensions in mm, inches, and pixels for common ISO and US paper sizes.
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Compound Interest
Calculate compound interest with monthly contributions using our free calculator. See how your investments grow over time with detailed projections.
Mortgage Payment
Calculate your monthly mortgage payment with our free calculator. See total interest costs and payment breakdowns for any loan amount and interest rate.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly with our free calculator. Enter your height and weight to find your BMI category and health range.
Percentage Calculator
Calculate percentages easily with our free online tool. Find what percent of a number is, percentage increase, decrease, and more in one calculator.
Age Calculator
Calculate your exact age in years, months, and days with our free online age calculator. Enter your birth date to find your precise age instantly.