単位変換ツール

The Unit Converter instantly converts between metric and imperial units for length, weight, volume, temperature, area, and speed. No more struggling with conversions - get accurate results for any measurement system.

Supported Conversions

• Length: Meters, feet, inches, miles, kilometers, yards, centimeters
• Weight: Kilograms, pounds, ounces, grams, tons, stones
• Volume: Liters, gallons, cups, tablespoons, milliliters, fluid ounces
• Temperature: Celsius, Fahrenheit, Kelvin
• Area: Square meters, square feet, acres, hectares
• Speed: MPH, km/h, m/s, knots

Common Conversion Factors

Key conversions to remember: 1 inch = 2.54 cm, 1 mile = 1.609 km, 1 pound = 0.4536 kg, 1 gallon = 3.785 liters, °F = (°C × 9/5) + 32.

Why Unit Conversion Matters

International travel, online shopping, recipes, fitness tracking, and scientific work all require unit conversion. The US uses imperial units while most of the world uses metric. Our converter bridges that gap instantly.

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Calculate areas with our square footage calculator. For cooking conversions, see our fraction calculator. Convert time zones with the time zone converter.