Formula
$$\text{Chains Per Hour} = \frac{\text{Distance} \div 66}{\text{Time}}$$
Where:
- Distance is in feet (1 chain = 66 feet)
- Time is in hours
- For metric, 1 chain = 20.1168 meters
Example
Given:
- Distance = 132 feet
- Time = 3 hours
$$\text{Chains Per Hour} = \frac{132 \div 66}{3} = \frac{2}{3} = 0.67$$
The result is 0.67 chains/hour.