Unit Converter
Length, area, volume, mass, force, pressure, temperature, energy, power, flow, electrical.
Example
You enter
- Category length
- Value 100
- From ft
- Convert to m
You get
- Result 30.48
Checked against published worked examples from: NIST SI/customary unit conversion factors (project bundled).
Details, formula, and sources
Formula or tableBidirectional conversion across length / area / volume / mass / force / pressure / temperature / energy / power / flow / electrical units, all factors from NIST SP 811.
Source and editionNIST SP 811 (Guide for the Use of the International System of Units (SI)) by name.
Free accessFree at nist.gov.
What governsEstimate. AHJ and licensed professional govern.
API field namescategory, value, from, to