Enter the power output in watts and the rower’s body weight into the calculator to determine the split time. This calculator can also evaluate any of the variables given the others are known.

Watts To Split Formula

The following formula is used to calculate the split time in rowing based on the power output in watts.

Split = ((2.80 / (Watts / Body Weight) ^ {(1/3)}) * 500) 


  • Split is the time it takes to row 500 meters (seconds)
  • Watts is the power output (watts)
  • Body Weight is the rower’s body weight (kg)

To calculate the split time, divide 2.80 by the power output in watts divided by the rower’s body weight. Raise the result to the power of 1/3. Multiply the result by 500 to get the split time in seconds.

What is a Watts To Split?

A Watts To Split is a term used in indoor rowing that refers to the relationship between the power output (measured in watts) and the time it takes to row a certain distance (split). It is a measure of the rower’s efficiency and strength. The higher the watts, the lower the split time, indicating a more powerful and efficient rower. This concept is crucial for rowers to understand their performance and to plan their training effectively.

How to Calculate Watts To Split?

The following steps outline how to calculate the Split using the given formula:

  1. First, determine the Watts (W) – the power output.
  2. Next, determine the Body Weight (BW) – the rower’s body weight in kilograms.
  3. Next, substitute the values into the formula: Split = ((2.80 / (W / BW) ^ (1/3)) * 500).
  4. Finally, calculate the Split.
  5. 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:

Watts (W) = 300

Body Weight (BW) = 70