1RM Hesaplayıcı

Use the free online 1RM Hesaplayıcı tool. Fast, private and easy to use — runs entirely in your browser. Part of our Spor Hesaplayıcıları collection.

Weight lifted (kg) Reps performed

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

Koşu Kalori Hesaplayıcı

Distance (km) Body weight (kg)

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

Recent race distance (km) Recent race time (minutes) Target distance (km)

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

Distance in 12 minutes (m)

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

Power (watts) Body weight (kg)

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

Vertical jump (cm) Body weight (kg)

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

Wingspan (cm) Height (cm)

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

Runs scored Balls faced

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

Is the 1RM Hesaplayıcı free to use?

Yes. The 1RM Hesaplayıcı is completely free with no sign-up, no limits and no watermarks. You can use it as many times as you like.

Is the 1RM Hesaplayıcı safe and private?

Absolutely. The 1RM Hesaplayıcı runs entirely in your browser, so your data never leaves your device and nothing is uploaded to a server.

Do I need to install anything to use the 1RM Hesaplayıcı?

No installation is needed. The 1RM Hesaplayıcı works instantly online in any modern browser on desktop, tablet or mobile.

Does the 1RM Hesaplayıcı work on mobile phones?

Yes. The 1RM Hesaplayıcı is fully responsive and works smoothly on iPhone, Android and any other device.