The result of your conversion between dunum, dunham and square rod appears here
To convert between Dunum, Dunham and Square Rod you have to do the following:
First divide 1000 / 0.092903412*272.25 = 39.53670272
Then multiply the amount of Dunum, Dunham you want to convert to Square Rod, use the chart below to guide you.
Symbol: dunum
No description
Symbol: rd²
No description