Length Converter
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Common Length Conversions
What Is a Unit Converter?
A unit converter changes a measurement from one unit into another within the same category — for example centimetres to inches, kilograms to pounds, or Celsius to Fahrenheit. Most conversions are a simple multiplication by a fixed factor; temperature is the exception because it uses a formula with an offset. This tool covers six everyday categories and updates the result the moment you type.
Handy Conversion Factors
Length
1 inch = 2.54 cm · 1 mile = 1.609 km
Weight
1 kg = 2.205 lb · 1 lb = 453.6 g
Temperature
°F = (°C × 9/5) + 32
Area
1 acre = 4046.86 m² · 1 ha = 10,000 m²
Volume
1 gallon (US) = 3.785 L
Speed
1 km/h = 0.621 mph
Why It's Useful
- Read recipes, manuals or products that use foreign units.
- Help with school and college science and maths problems.
- Convert height, weight, distance and speed on the fly.
- Switch instantly between the metric system used in India and imperial units.
Frequently Asked Questions
Common unit conversion questions
How do I convert centimetres to inches?
Divide the centimetre value by 2.54, because 1 inch = 2.54 cm. Example: 30 cm ÷ 2.54 = 11.81 inches. Select Length, choose cm and inch, and the tool does it instantly.
How do I convert kilograms to pounds?
Multiply the kilogram value by 2.20462, because 1 kg = 2.20462 pounds. Example: 70 kg × 2.20462 = 154.32 lb. Pick Weight, then kg and pound.
How do I convert Celsius to Fahrenheit?
Use Fahrenheit = (Celsius × 9/5) + 32. Example: 37°C = (37 × 9/5) + 32 = 98.6°F. Temperature is not a simple ratio, so this tool applies the correct formula automatically.
What is the difference between metric and imperial units?
Metric units (metre, kilogram, litre) are based on powers of ten and are the standard in India. Imperial/US units (foot, pound, gallon) are used mainly in the US and UK. This converter moves between both systems in one step.
Is this unit converter free and accurate?
Yes. It is completely free, needs no login, and uses standard internationally agreed conversion factors, so results are accurate for everyday and academic use. Results update live as you type.