# 1RM Calculator & Strength Log

> Strength log & PR tracker

Canonical page: [https://chrome-stats.com/d/id6772272093](https://chrome-stats.com/d/id6772272093)

## Overview

- **ID:** `id6772272093`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Phuc Pham
- **Category:** Health & Fitness
- **Version:** 1.1.1
- **Last updated:** 2026-08-15
- **First published:** 2026-06-04
- **Size:** 8.30 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/1rm-calculator-strength-log/id6772272093)
- **Website:** [https://web-levi.web.app](https://web-levi.web.app/)
- **Privacy policy:** [https://web-levi.web.app/privacy-policy](https://web-levi.web.app/privacy-policy)

## Description

Enter one working set and get your true one-rep max from seven proven formulas, then turn it into exact loads for every lift.

Know your one-rep max without ever grinding out a dangerous single. Enter any working set — the weight you lifted and how many clean reps you got — and OneRepMax instantly estimates the heaviest single you could hit today.

Most 1RM apps run one formula and call it a day. OneRepMax cross-checks seven proven strength-science equations — Epley, Brzycki, Lombardi, Lander, O'Conner, Mayhew and Wathan — and gives you a blended average so your number holds up whether you tested at 3 reps or 12. Then it turns that max into a full percentage table: the exact load for warm-ups, 5x5 strength work, and hypertrophy sets, in kg or lb.

WHAT YOU GET
- A trustworthy one-rep max from seven validated formulas, not a single guess
- A complete percentage table with warm-up ramp and training loads for every set
- Per-lift logging for squat, bench, deadlift and press with personal-record tracking
- Trend charts that show your estimated max climbing week over week
- A Beginner-to-Elite strength level scored from your bodyweight for each lift
- A Learn library explaining the formulas, programming and how to test safely, with cited sources

PERFECT FOR
- Powerlifters programming their next block around accurate maxes
- Lifters running 5x5, 5/3/1 or any percentage-based plan
- Gym-goers who want to load the bar right without maxing out
- Coaches and beginners learning what the numbers actually mean

WHY NOT JUST USE A FREE WEB CALCULATOR?
A web box gives you one number from one formula and forgets it the second you close the tab. OneRepMax keeps your history for every lift, blends seven equations for a number you can trust, builds your whole training table around it, and charts your progress over months — all offline.

PRIVACY
Your lifts and bodyweight stay on your device. No account, no sign-up, nothing uploaded.

FULL ACCESS
A free estimate is always available. Full access unlocks all seven formulas plus the blended average, per-lift logging with PRs, trend charts, and the bodyweight strength-level estimate. Upgrade weekly, yearly, or once with a lifetime purchase.

Load the bar with the right weight this session — open OneRepMax and enter your last set.

Terms of Use (EULA): https://web-levi.web.app/terms
Privacy Policy: https://web-levi.web.app/privacy-policy
Questions? tphuc.work@gmail.com

## Rankings

- #1,188,623 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6772272093)