Training Load Ratio (ACWR)

The Acute:Chronic Workload Ratio (ACWR) measures recent training load vs rolling chronic load. Loading too much too fast is a primary cause of overuse injuries

The calculator uses the standard published formula for training load ratio. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: Acute load = Session RPE x minutes in past 7 days. Each step in the calculation is shown so you can verify the result manually.