How length converter works
This converter changes a length from one unit to every other supported unit in a single step. It works by first converting the input to metres — the base unit — then dividing by the target unit's factor. For example, 1 metre becomes 3.28084 feet because one foot is exactly 0.3048 metres.
All conversions use exact internationally agreed factors: 1 inch = 25.4 mm, 1 foot = 0.3048 m, 1 yard = 0.9144 m, 1 mile = 1609.344 m, and 1 nautical mile = 1852 m. The metric units (metre, kilometre, centimetre, millimetre) are related by powers of ten.
Results are rounded to six decimal places for readability, with very large or very small values shown in scientific notation so they remain legible. The conversion runs live as you type, so you can experiment with values instantly — handy for recipes, DIY, running pace, or engineering work.
Frequently asked questions
How do I convert meters to feet?
Multiply the metres value by 3.28084, since one metre equals approximately 3.28084 feet. The converter does this automatically — enter your value, select metres as the source unit, and read the feet result.
How many kilometres are in a mile?
One mile is exactly 1.609344 kilometres, so to convert miles to kilometres you multiply by 1.609344. To go the other way, divide by 1.609344 (or multiply by 0.621371).
What is a nautical mile?
A nautical mile is exactly 1852 metres, or about 1.15078 land miles. It's based on the Earth's circumference and is used in aviation and maritime navigation because one nautical mile roughly equals one minute of latitude.
Are the conversion factors exact?
Yes. All factors use their internationally agreed exact values — for example, one inch is defined as exactly 25.4 millimetres, and one foot as exactly 0.3048 metres. Results are rounded only for display.