Training Percentage Calculator.
Translate a tested or estimated 1RM into training loads.
Calculate locally
Enable JavaScript to use this tool. No account or upload is needed.
Method & limitations
Calculated load = supplied 1RM × percentage ÷ 100. Custom percentages must be unique, from 1–100%, with up to 12 rows. Optional increments round down and are displayed separately from the calculated load. An estimated reference remains an estimate; the percentage table is arithmetic, not a prescribed training program. Inputs support up to six decimal places.
Displayed values are rounded to at most six decimal places unless otherwise noted. Plate totals are calculated from your entered equipment, not from rounded display values.
Software limits are input guardrails, not a declaration that a load is safe for you. Stop for pain; do not chase a number at the expense of technique.
Your inputs stay in this tab. No uploads, saved profiles, tracking or registration. Static tools work offline after a successful online visit and cache installation.
Step 1 is a free calculator collection only. It cannot approve or publish a MONTE WO rank.