A rood is one quarter of an acre.
Roods to Barns Converter — rood to b
Convert Rood (rood) to Barn (b) using the exact conversion factor (1 rood = 1.011714e+31 barn). See the formula, worked examples, and conversion table.
Roods to Barns 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.
A barn is a nuclear cross-section unit equal to 1e-28 square meters.
Result = input x 1011.714106 / 1e-28.
Area uses the square meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Roods to Barns
Comparing Rood and Barn 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 a barn is a nuclear cross-section unit equal to 1e-28 square meters.
Formula
barns = roods × 1.011714e+31
This factor comes from each unit's defined relationship to the category's base unit: 1 rood equals 1011.7141056 base units, and 1 barn equals 1e-28 base units, so dividing one by the other gives the direct rood-to-barn factor of 1.011714e+31.
Simple example
1 rood × 1.011714e+31 = 1.011714e+31 b
1 rood = 1.011714e+31 barns.
Real-world example
10 rood × 1.011714e+31 = 1.011714e+32 b
10 roods = 1.011714e+32 barns.
Conversion table
| Rood (rood) | Barn (b) |
|---|---|
| 1 rood | 1.011714e+31 b |
| 5 rood | 5.058571e+31 b |
| 10 rood | 1.011714e+32 b |
| 25 rood | 2.529285e+32 b |
| 50 rood | 5.058571e+32 b |
| 100 rood | 1.011714e+33 b |
Reverse conversion: Barn to Rood
1.011714e+31 b × 9.884215e-32 = 0.9999998956 rood
1.011714e+31 barns = 0.9999998956 roods.
roods = barns × 9.884215e-32
For a page dedicated to this direction, see Barn to Rood.
Understanding the Rood (rood)
A rood is one quarter of an acre.
Understanding the Barn (b)
A barn is a nuclear cross-section unit equal to 1e-28 square meters.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many barns are in 1 rood?
1 rood equals 1.011714e+31 barns, using the exact defined conversion factor rather than an estimate.
How do I convert rood to barn?
Multiply the rood value by 1.011714e+31. The converter above does this instantly to whatever precision you set.
How do I convert barn back to rood?
Use the reverse factor: 1 barn equals 9.884215e-32 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 barn?
Barn (b) is a unit of area.
Is the rood to barn conversion exact?
Yes. Both rood and barn are defined by fixed standards rather than physical artifacts, so the factor of 1.011714e+31 used above is exact to as many digits as you choose to display.