# Barbell.calc — Plate, percent & reverse math > Barbell plate calculator for weightlifting, powerlifting, and CrossFit. (iPhone/iPad app by JACK TILLMAN HALSTEAD.) - Source: https://appshunter.io/ios/app/barbellcalc/id6799563983 (this page in markdown: same URL + `.md`) - Developer: [JACK TILLMAN HALSTEAD](https://appshunter.io/developer/6799563985) - Category: Health & Fitness - Price: Free - Rating: 5.00/5 from 3 App Store ratings · 3 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 17 MB - Languages: American English - Released: 2026-08-17 - Data updated: 2026-08-26 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/barbellcalc/id6799563983/reviews.md ## What is Barbell.calc? Load the bar. Skip the math. Barbell.calc turns a target weight into an exact plate layout in kilograms and pounds at the same time. Built by a lifter, for the two minutes between sets when you shouldn't be doing arithmetic. TAP ON, HOLD OFF Tap a plate to add one per side. Press and hold to take one back off. The bar redraws as you go, with heavy plates seated against the sleeve and change plates drawn shorter — so you can read the load the way it'll actually look on the rack. REVERSE CALCULATOR Know the number, not the plates? Type your target and hit Calculate. You get the optimal loading instantly. If your plate set can't hit the number exactly, it tells you plainly and gives you the closest build instead of quietly rounding. PERCENTAGES OF YOUR MAX Enter a training max, drag the range to the percentages you're actually working in, and see the whole table. Tap any row and that weight loads straight onto the bar — no re-typing. TRUE KG AND LB SUPPORT Complete competition plate sets in both units. Kilograms: 25, 20, 15, 10, plus 5, 2.5, 2, 1.5, 1 and 0.5 change plates. Pounds: 55, 45, 35, 25, 15, 10, plus 5, 2.5, 1 and 0.5. The total displays in both units no matter which plates are on the bar. Switching units doesn't just convert the number — it rebuilds the same load out of the other plate set, as close as those plates allow. That's the honest answer, and it's the one you need when you train in kilos and your gym stocks pounds. MEN'S AND WOMEN'S BARS 20 kg / 15 kg, or 45 lb / 35 lb. Add 2.5 kg competition collars with one switch. YOUR GYM, YOUR PLATES Cross out any denomination your gym doesn't stock. Every calculation — forward, reverse, and percentage — respects your inventory. No more being told to load a 1.5 kg plate that doesn't exist in your rack. BUILT FOR THE GYM FLOOR - Works fully offline. No signal needed in the basement. - Haptic feedback you can turn off. - Large, glove-friendly targets. - A short tour on first launch, replayable any time from About. FREE, AND ACTUALLY FREE No account. No subscription. No in-app purchases. No ads. No analytics, no tracking, no data collection of any kind — everything you enter stays on your device. Made for Olympic weightlifting, powerlifting, CrossFit, and anyone who has ever stood at a loaded bar counting plates twice. Barbell.calc is an independent app by an NTR Barbell athlete, made with the gym's permission. ## Key features - Calculate exact plate layout - Reverse calculator for target weight - Percentage of max calculations - Customizable plate inventory - Supports kg and lb units - Offline functionality - Adjustable bar weight ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/barbellcalc/id6799563983/reviews.md ### 5/5 — Super useful *2026-08-17* This app is amazing, I have kilo brain so being able to convert to lbs for my gym is so convenient ### 5/5 — Needed this *2026-08-17* when I first started weightlifting. Programming was in kg but gym only had freedom units. Would’ve saved so much time ### 5/5 — El Jefe TX *2026-08-17* The ease of operations and calculations on this App are awesome! I follow many family members and friends that compete nationally and now, I can easily figure out ‘how much’ they are lifting. I’ve worked out for more than 45 years but have never competed, just staying fit. I’ve never had to calculate KGs to LBs, but now I can in a couple of seconds! ## Frequently asked questions about Barbell.calc ### How does Barbell.calc help with weight calculations? Barbell.calc converts a target weight into the precise plates needed for both kilograms and pounds. It also calculates percentages of your training max and allows you to customize your available plate inventory for accurate loading. ### Can I use Barbell.calc without an internet connection? Yes, Barbell.calc is built for the gym floor and works fully offline. No signal is needed, making it reliable even in basements or areas with poor reception. ### Does Barbell.calc support different types of bars? Yes, Barbell.calc supports both men's (20 kg / 45 lb) and women's (15 kg / 35 lb) bars. You can also add 2.5 kg competition collars with a simple switch. ### How does Barbell.calc handle gyms with limited plate denominations? You can cross out any plate denomination your gym doesn't stock within the app. All calculations, including forward, reverse, and percentage, will respect your customized inventory. ### What units does Barbell.calc support? Barbell.calc offers true support for both kilograms and pounds. Switching units rebuilds the load using the other plate set, providing an honest representation for training in different systems. ### Is Barbell.calc free to use? Yes, Barbell.calc is completely free to use. It has no account requirements, subscriptions, in-app purchases, or advertisements. ### Does Barbell.calc collect any user data? No, Barbell.calc does not collect any data. It has no analytics or tracking, ensuring that everything you enter stays on your device. ### How often is Barbell.calc updated? Barbell.calc was last updated on August 17, 2026, with version 1.0. As an independent app, updates will be released as needed to improve functionality and user experience. ## Version history (last 1 release) ### 1.0 — 2026-08-17 No release notes. --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*