One-Rep Max Calculator

What you get

Estimate your one-rep max from any set and get a full percentage training table.

Highlights

• Estimate your 1RM from any set
• Full percentage training table
• Switch between kg and lb
• Works offline

Format & delivery

Delivered as a HTML app. Open it in any modern browser — no install, no account, no server. It works offline, and the file is yours to keep.

Immediately after your Lightning payment settles, the download link appears at checkout. No account, no email, no waiting for a message.

How buying works

Pay from any Lightning-enabled Bitcoin wallet. The checkout creates an invoice for the fixed USD price and unlocks the file when the payment settles. An on-chain fallback is available. If you do not have Bitcoin yet, the no-card guide explains the shortest route.

Category: Fitness Sports · Product ID: one-rep-max-calculator