What is a rod?
A rod is an old surveying length equal to 5.5 yards. Since 1 yard = 3 feet, we get:
1 rod = 5.5 × 3 ft = 16.5 ft
Rods are convenient because they divide nicely into chains and miles used in classic land surveying.
Formulas
Feet = Rods × 16.5
Example: 3 rods × 16.5 = 49.5 feet
Rods = Feet ÷ 16.5
Example: 99 feet ÷ 16.5 = 6 rods
FAQ
1. Are rods, poles, and perches the same?
Yes. In most English-speaking surveying traditions they all refer to 16.5 feet.
2. Why is there a “survey” option?
Some US datasets use a survey foot (slightly different from the international foot). We’ve added it to match tools like unitconverters.net and survey tables.
3. How does this relate to chains and miles?
4 rods = 1 chain (66 ft). 80 chains = 1 mile. This is why 16.5 ft was picked — it creates a neat hierarchy.