A rood is one quarter of an acre.
Roods to Square Petameters Converter — rood to Pm2
Convert Rood (rood) to Square Petameter (Pm2) using the exact conversion factor (1 rood = 1.011714e-27 square petameter). See the formula, worked examples, and conversion table.
Roods to Square Petameters 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+30.
Area uses the square meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Roods to Square Petameters
Comparing Rood and Square Petameter 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 petameters = roods × 1.011714e-27
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 petameter equals 1e+30 base units, so dividing one by the other gives the direct rood-to-square petameter factor of 1.011714e-27.
Simple example
1 rood × 1.011714e-27 = 1.011714e-27 Pm2
1 rood = 1.011714e-27 square petameters.
Real-world example
10 rood × 1.011714e-27 = 1.011714e-26 Pm2
10 roods = 1.011714e-26 square petameters.
Conversion table
| Rood (rood) | Square Petameter (Pm2) |
|---|---|
| 1 rood | 1.011714e-27 Pm2 |
| 5 rood | 5.058571e-27 Pm2 |
| 10 rood | 1.011714e-26 Pm2 |
| 25 rood | 2.529285e-26 Pm2 |
| 50 rood | 5.058571e-26 Pm2 |
| 100 rood | 1.011714e-25 Pm2 |
Reverse conversion: Square Petameter to Rood
1.011714e-27 Pm2 × 9.884215e+26 = 0.9999998956 rood
1.011714e-27 square petameters = 0.9999998956 roods.
roods = square petameters × 9.884215e+26
For a page dedicated to this direction, see Square Petameter to Rood.
Understanding the Rood (rood)
A rood is one quarter of an acre.
Understanding the Square Petameter (Pm2)
Square metric area unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many square petameters are in 1 rood?
1 rood equals 1.011714e-27 square petameters, using the exact defined conversion factor rather than an estimate.
How do I convert rood to square petameter?
Multiply the rood value by 1.011714e-27. The converter above does this instantly to whatever precision you set.
How do I convert square petameter back to rood?
Use the reverse factor: 1 square petameter equals 9.884215e+26 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 petameter?
Square Petameter (Pm2) is a unit of area.
Is the rood to square petameter conversion exact?
Yes. Both rood and square petameter are defined by fixed standards rather than physical artifacts, so the factor of 1.011714e-27 used above is exact to as many digits as you choose to display.