Decision tools built for clarity
Area Converter
Convert area values across metric, US customary, and Egyptian agricultural units.
Enter the required values, select the applicable options, and calculate.
Methodology
Formula or transformation
Normalizes area through square meters and applies the target-unit factor.
Variables
- Submitted area
- Source unit conversion factor
- Canonical area in square meters
- Target unit conversion factor
Units
- Square millimeter
- Square centimeter
- Square meter
- Square kilometer
- Square inch
- Square foot
- Square yard
- Acre
- Hectare
- Egyptian feddan
- Egyptian qirat
Rounding policy
The converted area is rounded to the declared result scale using half away from zero.
Every supported unit is normalized through the square meter before conversion to the target unit.
Convert area values across metric, US customary, and Egyptian agricultural units.
Reviewed sources
- NIST — SI conversion factors: area, volume, and speed Reviewed on 2026-09-07
- Egyptian Environmental Affairs Agency — Egyptian land area units Reviewed on 2026-09-07
Formula review history
-
Initial formula and source review.
Reviewed 2026-09-07 for formula version nist-eg-area-conversion-v1
Assumptions
- Inputs are interpreted using the displayed units and options.
- The calculation follows the methodology and factors listed in the sources.
Limitations
- Display rounding can hide additional decimal places.
- The calculation cannot add accuracy that is absent from the submitted inputs.
Worked example
One Egyptian feddan equals 24 qirat or 4,200 square meters.
Frequently asked questions
Are the calculations deterministic?
Yes. The same valid inputs and options produce the same canonical result.
Can I use decimal values?
Use decimal values where the displayed input accepts them.