FARMER'S CARRY MAX CALCULATOR

How This Calculator Works

Unlike a squat or bench 1RM, there's no single validated formula for estimating a farmer's carry max from a submaximal attempt — carry strength depends on grip endurance, core stability, and walking mechanics in a way that doesn't reduce cleanly to a weight-and-reps equation. Most farmer's carry standards are instead defined by distance: how much weight can you carry for a fixed distance, commonly 20 meters in strongman and functional fitness testing.

The Distance Adjustment

If you carried a load further than 20 meters, you likely could have carried more weight for exactly 20 meters. If you carried it a shorter distance, the reverse is true. This calculator applies a logarithmic adjustment — estimated 20m load = total load × (1 + 0.15 × log₂(distance ÷ 20)) — to translate your actual carry into an estimated standardized 20m number. This is an approximation, not a validated scientific formula, and works best when your actual distance is reasonably close to 20 meters (roughly 10–40m).

Reading Your Ratio

Load-to-bodyweight ratio (total combined load divided by bodyweight) is a more useful comparison across different body sizes than raw pounds or kilos carried. A ratio around 1.0–1.25 (carrying roughly your own bodyweight, split across two hands) is a solid recreational benchmark; competitive strongman and grip-sport athletes regularly exceed 1.75.

Grip Is Usually the Limiter

For most lifters, a farmer's carry attempt ends because grip gives out, not because of leg or core failure. If you're consistently dropping the implements before your legs or breathing become the limiting factor, grip-specific training (see the Grip Max Calculator) will likely raise your carry numbers faster than general strength work.