Measurement Unit Conversions
Pick a category, enter your value, and instantly convert between common metric and imperial units. This page aims to do what 6 separate converters do — on one screen.
Universal converter
Result
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All units in this category
How this converter works
For most quantities (length, mass, volume, area, speed) conversion is done through a base unit. We convert your input to the base unit, then to every other unit.
- Length base: meter (m)
- Mass base: kilogram (kg)
- Volume base: liter (L)
- Area base: square meter (m²)
- Speed base: meter per second (m/s)
Temperature exception
Temperature uses formulas, not factors.
°C = (°F − 32) × 5/9°F = (°C × 9/5) + 32K = °C + 273.15
FAQ
Can I convert gallons to liters here?
Yes. Choose the Volume category, set “From” to “gallon (US)” and “To” to “liter”.
Why do I see US gallon and not UK gallon?
This version uses US liquid measure because it’s the most searched. You can extend it easily by adding 1 imp gal = 4.54609 L in your own copy.
Is this suitable for SAT / school conversions?
Yes. The structure matches what SAT, GCSE and most high-school courses expect: pick unit, multiply by conversion factor, get answer.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted text)
°C = (°F − 32) × 5/9 °F = (°C × 9/5) + 32 K = °C + 273.15
Variables and units
- No variables provided in audit spec.
Sources (authoritative):
- NIST — Weights and measures — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/weights-and-measures - NIST — SI units — nist.gov · Accessed 2026-01-19
https://www.nist.gov/pml/owm/metric-si/si-units
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.