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Reference table, 48 figures

One-rep max by reps and weight lifted

This table shows the estimated one-rep max — the average of six published formulas — for each combination of reps performed (2–10) and weight lifted (40–180 kg). For example, lifting 100 kg for 6 reps estimates a 1RM of about 119.1 kg.

Every value below is computed live from the One-Rep-Max calculator engine. Read the methodology for how the six formulas combine, the formula breakdown, or how to test your 1RM safely.

Download CSV (48 rows) Free to cite under CC BY 4.0

1RM grid: reps rows × weight columns

Estimated 1RM (kg). Rows: reps performed. Columns: weight lifted (kg).

Reps \ kg 406080100120140160180
2 42.563.785.0106.2127.5148.7170.0191.2
3 43.865.887.7109.6131.5153.5175.4197.3
4 45.167.790.3112.8135.4158.0180.5203.1
6 47.771.595.3119.1143.0166.8190.6214.4
8 50.275.3100.4125.5150.6175.7200.8225.9
10 52.879.2105.6132.1158.5184.9211.3237.7

Cells are the estimated one-rep max in kg (mean of the Epley, Brzycki, Lombardi, Mayhew, Wathen and Lander formulas). The same weight estimates a higher 1RM the more reps it was lifted for; fewer reps tracks closer to the load itself.

How the table is made

Engine
One-Rep-Max Calculator (one-rep-max-calculator)
Source
Computed live from /engines/one-rep-max-calculator.js
Rows
Reps performed: 2, 3, 4, 6, 8, 10
Columns
Weight lifted: 40, 60, 80, 100, 120, 140, 160, 180 kg
Size
6 × 8 = 48 cells
Each figure
average estimated 1RM (kg)
CSV columns
per-formula 1RM, average, training maxes (90% / 85%)
Grid last changed
, recomputed on every build

The engine is deterministic, with no clock and no randomness, so each cell reproduces exactly on every build. The full grid is embedded as machine-readable JSON and recomputed by our CI gate against a fresh engine run; the table and CSV are rendered from those same outputs, never hand-entered.

Run your own numbers

General fitness estimates, not medical advice. For a medical decision, ask a doctor.