Estimate 1RM without a true max attempt
A one-rep max calculator uses formulas (like Brzycki) from weight × reps to estimate the load you could lift once. That estimate powers percentage-based programs without weekly max-outs.
VO2 max as a conditioning checkpoint
VO2 max calculators approximate aerobic fitness from protocols such as timed runs or step tests. Use them to track trends across weeks, not as a clinical diagnosis.
DOTS for fairer strength comparisons
DOTS scores help compare lifts across bodyweights. They are popular in powerlifting communities when raw totals alone hide who is relatively stronger.
Related tools
Frequently asked questions
Is an estimated 1RM safe to load immediately?
Start below the estimate, especially on technical lifts. Warm up thoroughly and stop if form breaks down.
How often should I recalculate?
Recalculate when working weights jump meaningfully — often every few training blocks — rather than every session.