A rood is one quarter of an acre.
Roods to Square Megameters Converter — rood to Mm2
Convert Rood (rood) to Square Megameter (Mm2) using the exact conversion factor (1 rood = 1.011714e-9 square megameter). See the formula, worked examples, and conversion table.
Roods to Square Megameters converter
Converter
Area Converter
Convert land, construction, mapping, survey, and scientific area units.
Context values
Some unit families need one extra value for a physically accurate result.
Square metric area unit.
Result = input x 1011.714106 / 1e+12.
Area uses the square meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Roods to Square Megameters
Comparing Rood and Square Megameter is common in agriculture and real estate, where US land is typically measured in acres and most of the rest of the world uses hectares. Specifically: A rood is one quarter of an acre, and square metric area unit.
Formula
square megameters = roods × 1.011714e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 rood equals 1011.7141056 base units, and 1 square megameter equals 1e+12 base units, so dividing one by the other gives the direct rood-to-square megameter factor of 1.011714e-9.
Simple example
1 rood × 1.011714e-9 = 1.011714e-9 Mm2
1 rood = 1.011714e-9 square megameters.
Real-world example
10 rood × 1.011714e-9 = 1.011714e-8 Mm2
10 roods = 1.011714e-8 square megameters.
Conversion table
| Rood (rood) | Square Megameter (Mm2) |
|---|---|
| 1 rood | 1.011714e-9 Mm2 |
| 5 rood | 5.058571e-9 Mm2 |
| 10 rood | 1.011714e-8 Mm2 |
| 25 rood | 2.529285e-8 Mm2 |
| 50 rood | 5.058571e-8 Mm2 |
| 100 rood | 1.011714e-7 Mm2 |
Reverse conversion: Square Megameter to Rood
1.011714e-9 Mm2 × 988421525.9 = 0.9999998956 rood
1.011714e-9 square megameters = 0.9999998956 roods.
roods = square megameters × 988421525.869
For a page dedicated to this direction, see Square Megameter to Rood.
Understanding the Rood (rood)
A rood is one quarter of an acre.
Understanding the Square Megameter (Mm2)
Square metric area unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many square megameters are in 1 rood?
1 rood equals 1.011714e-9 square megameters, using the exact defined conversion factor rather than an estimate.
How do I convert rood to square megameter?
Multiply the rood value by 1.011714e-9. The converter above does this instantly to whatever precision you set.
How do I convert square megameter back to rood?
Use the reverse factor: 1 square megameter equals 988,421,525.9 roods. You can also use the swap control in the converter above to flip the direction instantly.
What is a rood?
Rood (rood) is a unit of area.
What is a square megameter?
Square Megameter (Mm2) is a unit of area.
Is the rood to square megameter conversion exact?
Yes. Both rood and square megameter are defined by fixed standards rather than physical artifacts, so the factor of 1.011714e-9 used above is exact to as many digits as you choose to display.