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Unit Converter — Tips & Guide
This converter supports 9 unit categories with dozens of units. All conversions happen locally in your browser — no data is sent anywhere.
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The full table below the main converter shows your input value converted to every unit in the category simultaneously — great for comparing options.
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Use the quick-conversion chips at the top to jump straight to frequently needed conversions like kg to lbs or miles to kilometers.
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Enter decimal values like 1.5 or 0.25 for precise results. The converter handles very large and very small numbers using scientific notation where needed.
There are exactly 2.54 centimeters in one inch. To convert inches to cm, multiply by 2.54. To convert cm to inches, divide by 2.54. For example, 12 inches = 30.48 cm, and 100 cm = 39.37 inches.
To convert kilograms to pounds, multiply by 2.20462. One kilogram equals approximately 2.205 lbs. For example, 70 kg = 154.32 lbs. To go from lbs to kg, divide by 2.20462 (or multiply by 0.453592).
A nautical mile is a unit of distance used in maritime and air navigation. It is defined as exactly 1,852 meters (1.852 km or about 1.151 statute miles). One knot equals one nautical mile per hour. The nautical mile is based on the circumference of the Earth — it approximates one minute of arc of latitude.
In computing, 1 GB (gigabyte) equals 1,024 MB (megabytes) when using binary (base-2) prefixes, as is standard for RAM and file sizes in most operating systems. In strict SI decimal terms, 1 GB = 1,000 MB. This tool uses the binary standard (1 GB = 1,024 MB = 1,048,576 KB).