📏 Everyday Unit Conversions
Free unit converters for length, weight, volume, area, temperature, speed, pressure, energy, force, frequency and angle — instant and exact.
The everyday conversion families in one place: length and distance, weight and mass, volume and area, plus speed, pressure, energy, force, frequency and angle.
Every factor is the exact legal definition — metric, imperial and US customary — so results carry full precision internally and round only for display.
Angle Converter
Convert between degrees, radians, gradians, turns and arc units instantly.
Area Converter
Convert square meters, square feet, acres, and hectares instantly. Ideal for real estate and land.
Energy Converter
Convert between joules, calories, kilowatt-hours, BTU and more.
Force Converter
Convert between newtons, pound-force, kilogram-force, dynes and more.
Free Frequency Converter
Convert between hertz, kilohertz, megahertz, gigahertz, RPM and period.
Gas Mileage Calculator
Work out your fuel economy in seconds. Enter the distance you drove and the fuel you used to see miles per gallon (MPG) and litres per 100 km (L/100km) side by side.
German Flour Type Converter
Compare two German flour types side by side — ash content, typical protein, international equivalents and a substitution note, with the DIN 10355 type numbers explained.
Oven Mode Converter (Umluft)
Convert Ober-/Unterhitze to Umluft and back with the adjustable 25 °C rule, gas mark orientation, and a baking-time estimate.
Free Length Converter
Convert meters, centimeters, feet, inches, kilometers, and miles in one click. Accurate and private.
Free Pressure Converter
Convert pascals, bar, psi, and atmospheres instantly. Perfect for tires, weather, and engineering.
Free Speed Converter
Convert kilometers per hour, miles per hour, meters per second, and knots instantly.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin in one click. Instant, accurate results with no data upload.
Free Volume Converter
Convert liters, milliliters, gallons, cups, and cubic meters instantly. Great for cooking and liquids.
Weight Converter
Convert between kilograms, grams, pounds, and ounces instantly. Fast, precise, and 100% private.
Frequently asked questions
How are temperature scales converted?
By the exact formulas between Celsius, Fahrenheit, Kelvin and the common engineering scales — not rounded shortcuts.
Are the conversion factors exact?
Yes — where a unit has a legal definition (an inch is 25.4 mm), that exact factor is used; rounding happens only at display.
Why is fuel consumption here?
Miles per gallon, liters per 100 km and km per liter are units like any other; the converter treats them as a family with exact ratios.