Unit Converter
Convert between common units of length, weight, and temperature. Fast, accurate conversions between metric and imperial systems.
Length Converter
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This calculator provides estimates and is for informational purposes only.
Weight Converter
Result
This calculator provides estimates and is for informational purposes only.
Temperature Converter
Result
This calculator provides estimates and is for informational purposes only.
Unit Conversion Reference
Common conversions: 1 mile = 1.609 km, 1 inch = 2.54 cm, 1 kg = 2.205 lbs, 1 stone = 14 lbs, 0°C = 32°F = 273.15K.
The metric system (SI) is used by most countries worldwide. The United States primarily uses the imperial system for everyday measurements, while scientific work universally uses metric units.
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
Multiply the Celsius temperature by 9/5 (or 1.8) and add 32. For example, 25°C = (25 × 1.8) + 32 = 77°F.
How many feet are in a meter?
One meter equals approximately 3.281 feet. Conversely, one foot is 0.3048 meters.
What's the difference between metric and imperial?
The metric system uses base-10 units (meters, grams, liters) while the imperial system uses feet, pounds, and gallons. Metric is easier for scientific calculations due to its consistent base-10 structure.