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Unit Converter

All Length Conversions 1 metre =
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Disclaimer. This tool is provided for informational and educational purposes only. For engineering, medical, or other safety-critical applications, always independently verify converted values against a trusted reference source. Read full disclaimer →

How to Use the Unit Converter

Select a category (length, weight, temperature, etc.), enter your value, choose the input and output units, and the result appears instantly — no button needed. All conversions support both metric and imperial systems.

Common Conversion Examples

All conversions use exact SI-standard ratios. No signup required — results are calculated locally in your browser.

The Conversion Formula

Most conversions are a simple multiplication: Output = Input × Conversion Factor (e.g., km → miles uses a factor of 0.6214). Temperature is the exception, requiring an offset: °F = (°C × 9/5) + 32.

Worked Example

Converting a recipe measurement: 2.5 kg of flour to pounds.

  1. Step 1: Conversion factor: 1 kg = 2.2046 lbs
  2. Step 2: 2.5 × 2.2046 = 5.51 lbs

Quick Reference: Metric vs. Imperial

MetricImperial/USFactor
1 kilometer0.6214 miles× 0.6214
1 kilogram2.2046 lbs× 2.2046
1 liter0.2642 US gal× 0.2642
0°C32°F×9/5 + 32

Frequently Asked Questions

All conversions use exact SI-standard conversion ratios, not rounded approximations, so results are precise to the decimal places shown.
°F = (°C × 9/5) + 32. To convert the other way: °C = (°F − 32) × 5/9.
The US uses the imperial/US customary system while most of the world uses the metric system, standardized internationally as SI units in 1960.
This tool is suitable for everyday and reference use. For engineering, medical dosing, or other safety-critical applications, always independently verify converted values against a certified reference source.