Lat Pulldown 1RM Calculator

Read your lat-pulldown working-weight target

Use the target on the same lat-pulldown station, grip and recorded-weight convention. Choose the equipment-rounded value only when the stack cannot match the unrounded estimate.

Keep the pulldown setup comparable

Enter a completed set from the same lat-pulldown station, attachment, grip, seat position, and range of motion. Record the stack or station weight using the convention shown by that machine, then choose the target repetitions or percentage and an optional equipment increment.

A changed pulley, attachment, grip, or machine creates a different observation. The displayed number is the recorded stack or station weight, not measured handle force, and the calculator does not transfer it to a pull-up.

Weight unit

Choose the unit shown on your weights.

Weight lifted

Enter the weight used for your completed set, following the weight convention below.

Repetitions completed

Enter 1–10 full repetitions from a hard set with consistent technique.

Repetitions to estimate

Choose how many repetitions you want to estimate a weight for, from 1 to 10.

Percentage of your estimated max

Enter the percentage weight you want to calculate.

Available weight increase

Leave blank for the exact estimate, or enter the smallest total weight increase your equipment allows.

How are you counting the weight?

Choose the description that matches the number you entered. Keep this choice the same when comparing results.

Machine name

Optionally name the exact machine so you can compare like-for-like next time.

Setup notes

Record the seat, grip or stance you want to repeat next time.

Compare rep targets on this pulldown machine

The curve shows estimated rep targets in the machine's recorded units. It does not correct the stack number for pulley design or convert it into free-weight resistance.

The example below shows how to read the graph. Your graph updates after you calculate, and the complete values remain available in the table beneath it.

Follow a lat-pulldown rep-max example

The result uses only the values you enter and the method shown below. Rounded workout values stay separate from the underlying calculation.

A checked lat pulldown example

This checked example uses pounds. It comes directly from the same calculator that produces your result.

Select “Use example” to load these values. If you choose kilograms in the calculator, the chart and personalized tables recalculate in kilograms.

What the pulldown estimate can tell you

Use this as a repeatable estimate, not proof of your true one-rep max. The available study used to check the Brzycki equation tested free-weight bench press in 103 college women. That study checks the equation in that setting; It did not test lat pulldown. Pulldown stations can differ in pulley ratio, stack calibration and attachments, so compare results only on the same station and setup. Use a hard set of 1–10 full repetitions. Stopping early can understate the estimate, and this calculator does not accept higher-repetition sets.

• Strength Testing—Predicting a One-Rep Max from Reps-to-Fatigue — Matt Brzycki (1993).
• Accuracy of Prediction Equations for Determining One Repetition Maximum Bench Press in Women Before and After Resistance Training — Mayhew et al. (2008).
• Guide for the Use of the International System of Units (SI) — NIST (2008).

Choose the next pulling-strength task

• Lat Pulldown Live Endura

  Explore pulldown standards separately from same-machine rep-max estimation.

• RPE Calculator

  Record effort alongside the completed pulldown set.

• Warm-Up Set Calculator

  Calculate chosen warm-up percentages using the same stack convention.

• Biceps Curl 1RM Calculator

  Track a separate curl set as part of an upper-body workout log.

• One Rep Max and Rep Max Calculator

  Use the general rep-max calculator for an exercise not covered by this machine page.