Good Gym Calculator
Health & Fitness
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Good Gym Calculator is the app you open between sets. No accounts, no feed, no clutter — just the three tools that actually get used on the gym floor.
GYM CALCULATOR
Work out your numbers in seconds instead of doing math with chalky hands.
- Estimate your one-rep max from any set and rep count
- Build percentage tables off any max, so you always know what "75% x 5" means today
- Convert between pounds and kilos instantly
- Figure warm-up jumps up to your working weight
LIFT LOG BOOK
A training log that takes seconds to fill in, not minutes.
- Record sets, reps, and weight for any lift
- Pull up your history for a movement before you load the bar
- Watch your best lifts move over weeks and months
- Everything stays on your device and stays yours
PLATE LOADER
Stop squinting at the bar and second-guessing the math.
- Enter a target weight and see the exact plates per side
- Choose your barbell weight for standard, women's, or training bars
- Set which plates your gym actually has, so you never get told to load something that isn't in the rack
- Works in pounds or kilos
BUILT FOR HOW YOU ACTUALLY TRAIN
Whether you're running a strength cycle, coaching a class, or just trying to add five pounds to your squat, the answers you need are one tap away. Big buttons, clean numbers, no scrolling past ads to find the field you want.
Load the bar. Log the lift. Get back to work.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Adjusted some math and presets for PR Mode.
The developer, Karene Smith, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Karene Smith
- Size
- 37.5 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Canon Smith
