Sportkalkylatorer

Training and performance math — strength, running, cycling, jumping and cricket, with standard sports-science formulas.

1RM-kalkylator

Estimate your one-rep max with the Epley formula plus common training percentages.

Löpkalorikalkylator

Estimate calories burned running or walking a distance based on your body weight.

Loppstidsprediktor

Predict your finish time at a new distance from a recent result using the Riegel formula.

VO2 max-kalkylator (Coopertest)

Estimate aerobic fitness from a 12-minute run using the classic Cooper test formula.

Effekt-vikt-kalkylator

Compute watts per kilogram, the key performance metric in cycling and climbing.

Vertikalhoppskraft-kalkylator

Convert a vertical jump into peak leg power with the Sayers equation.

Ape index-kalkylator

Find your ape index — wingspan minus height — the climber's favourite measurement.

Strike rate-kalkylator

Work out a cricket batting strike rate — runs per 100 balls faced.