Unit Conversion Calculators
Convert between different units of measurement with precision and ease
Length Converter
Convert between all common length units including metric (meters, centimeters, millimeters, kilometers) and imperial (feet, inches, yards, miles) with precision and ease.
- ✓Convert between metric and imperial units
- ✓Precise conversions with up to 10 decimal places
- ✓Support for both common and specialized units
- ✓Instant results with no page reloads
Popular Conversion Calculators
Conversion Calculators by Category
Convert between meters, feet, inches, and more
Convert between kilograms, pounds, ounces, and more
Convert between Celsius, Fahrenheit, and Kelvin
Convert between liters, gallons, cubic meters, and more
Convert between square meters, square feet, acres, and more
Convert between seconds, minutes, hours, days, and more
Why Use Our Conversion Calculators?
Accurate & Reliable
Our conversion calculators use precise conversion factors to ensure accurate results every time.
Comprehensive
From common everyday conversions to specialized scientific units, our calculators cover a wide range of measurement systems.
Easy to Use
Simply enter your value, select the units you want to convert from and to, and get instant results.
Unit Conversion Tips
Metric to Imperial Conversions
- Length: 1 inch = 2.54 centimeters (exactly)
This is a defined conversion factor, not an approximation. To convert inches to cm, multiply by 2.54.
- Weight: 1 kilogram ≈ 2.20462 pounds
To convert kg to lb, multiply by 2.2. For a quick estimate, 1 kg is a bit more than 2 pounds.
- Volume: 1 liter ≈ 0.264 US gallons
For quick estimates, 1 liter is about a quarter of a US gallon. Note that US and UK gallons are different.
Temperature Conversions
- Celsius to Fahrenheit: °F = (°C × 9/5) + 32
Room temperature (20°C) is about 68°F. Body temperature (37°C) is about 98.6°F.
- Fahrenheit to Celsius: °C = (°F - 32) × 5/9
Freezing point (32°F) is 0°C. Boiling point (212°F) is 100°C.
- Celsius to Kelvin: K = °C + 273.15
Absolute zero is 0 K, which is -273.15°C. Room temperature is about 293 K.
Frequently Asked Questions
Convert Units with Precision
Our conversion calculators make it easy to convert between different units of measurement for any purpose.