📐 Free Unit Converter

How to Use This Converter

Select your conversion type from the dropdown, enter a value, and click Convert. The calculator will show the converted value instantly.

This unit converter handles the most common conversions needed for everyday use.

Example Conversions

Distance: 5 miles to kilometers

• 5 miles × 1.60934 = 8.05 km

Weight: 150 pounds to kilograms

• 150 lbs × 0.453592 = 68.04 kg

Temperature: 75°F to Celsius

• (75 - 32) × 5/9 = 23.9°C

Common Conversion Formulas

Length:

• 1 mile = 1.60934 kilometers
• 1 foot = 0.3048 meters
• 1 inch = 2.54 centimeters

Weight:

• 1 pound = 0.453592 kilograms
• 1 ounce = 28.3495 grams

Temperature:

• °C = (°F - 32) × 5/9
• °F = (°C × 9/5) + 32

Frequently Asked Questions

Why are there different conversion factors?

Different units measure different systems (imperial vs metric). The conversion factors are mathematically precise ratios between the two units.

Is this converter accurate?

Yes, this converter uses standard conversion factors. Results are rounded to 4 decimal places for precision.

Can I convert between any units?

This converter covers the most common conversions. For specialized units (like nautical miles or stone), you'd need a more specialized tool.