Get the units right.
Convert a measurement, understand its notation, and carry the result into your document or spreadsheet.
Convert length or weight
Enter a decimal, a fraction, feet and inches, or pounds and ounces. Check the interpreted units before copying the result. For a list, keep original row positions and correct errors before copying the results column.
Open the length and weight converterChoose the explanation for your task
- Decimal feet or feet and inches?
Compare 5.10 feet with 5 feet 10 inches before reusing a height or length.
- Millimeters and inch fractions
Read practical fractions and the difference introduced by rounding.
- Pounds, ounces and troy units
Choose the correct unit system; a fluid ounce measures volume.
- Convert a spreadsheet column
Preserve blank positions, fix invalid rows and inspect an audit CSV.
Before using a result
Check the unit system and selected precision. A rounded display does not increase the accuracy of the original measurement. Length and mass are separate dimensions: the converter cannot turn fluid ounces into weight or determine whether a material fits safely.