Enter the distance traveled per hour and the total time spent traveling into the calculator to determine the total river miles. This calculator can also evaluate any of the variables given the others are known.

## River Miles Formula

The following formula is used to calculate the total river miles.

RM = D * T

Variables:

- RM is the total river miles D is the distance traveled

## What is a River Miles?

River miles is a measurement system used to determine the distance along a river from its mouth to a specific point upstream. It is commonly used in the United States for navigation and management of rivers. The measurement starts at zero at the mouth of a river and increases as one moves upstream. For example, a location at river mile 10 is 10 miles upstream from the mouth of the river.

## How to Calculate River Miles?

The following steps outline how to calculate the River Miles (RM) using the formula RM = D * T.

- First, determine the distance traveled per hour (D) in miles per hour.
- Next, determine the total time spent traveling (T) in hours.
- Next, gather the formula from above = RM = D * T.
- Finally, calculate the River Miles (RM) by multiplying the distance traveled per hour (D) by the total time spent traveling (T).
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

distance traveled per hour (D) = 10 miles per hour

total time spent traveling (T) = 5 hours