Free Training Load Calculator
Calculate your session training load using the TRIMP (Training Impulse) method based on duration and heart rate.
minutes
bpm
bpm
bpm
TRIMP Score
66
Heart Rate Reserve Used65 %
TRIMP Score vs Session Duration
TRIMP (Training Impulse)
TRIMP quantifies session training load by combining duration with exercise intensity.
Formula (Male)
TRIMP = Duration x HRratio x 0.64 x e^(1.92 x HRratio)
Where HRratio = (Avg HR - Rest HR) / (Max HR - Rest HR)
Interpretation
Example Calculation
A 45-minute run averaging 145 bpm, resting HR 60, max HR 190.
- 01HR ratio = (145 - 60) / (190 - 60) = 85 / 130 = 0.654
- 02TRIMP = 45 x 0.654 x 0.64 x e^(1.92 x 0.654)
- 03= 45 x 0.654 x 0.64 x e^(1.256)
- 04= 45 x 0.654 x 0.64 x 3.512 = 66 (Moderate)
Frequently Asked Questions
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