Rowing
Splits, watts, pacing and erg performance calculators.
Rowing 2K Predictor
Predict a 2K time from an erg result
Rowing Calories Burned Calculator
Estimate rowing calories by effort and time
Rowing Distance Calculator
Calculate distance from split and time
Rowing Pace Converter
Convert watts and 500m split
Rowing Power Curve Calculator
Calculate work from rowing watts and time
Rowing Split Calculator
Convert split time, watts, distance, and duration
Rowing Training Load Calculator
Estimate rowing session load
Rowing Training Zone Pace Calculator
Enter your 2k time → get training pace zones
Stroke Efficiency Calculator
Calculate and evaluate rowing efficiency from distance per stroke
Stroke Rate Calculator
Find strokes, rate and distance per stroke
Target Split Calculator
Enter distance and time → find your required split
Watts to 500m Split Calculator
Enter watts → get your split instantly
Running
Race predictions, training paces and performance zones.
Heart Rate Zones Calculator
Calculate five training heart-rate zones
Marathon Pace Calculator
Estimate marathon pace and split targets
Race Time Predictor
Predict future race times from a recent performance
Running Calories Calculator
Estimate calories from running pace and time
Running Pace Calculator
Calculate running pace, speed and finish time
Running Training Pace Zones
Enter a recent race time → get personalised training pace zones
VO2 Max Calculator
Estimate VO2 max from a Cooper test
Strength
1RM estimates and strength training calculations.
1RM Calculator
Enter weight and reps → estimate your max
Plate Calculator
Calculate plates needed per side
Strength Standards Calculator
Compare your lift with bodyweight standards
Watts Per Kilogram Calculator
Compare power output with body weight
Nutrition
Macro targets and calorie calculations.