FAQ
Common RackMath questions.
Quick answers for lifters looking for a weight lifting calculator, barbell plate calculator, or simpler way to do plate math.
Is RackMath a weight lifting calculator?
Yes. RackMath is a weight lifting calculator for loading barbell plates, running workout sessions, logging sets, and reviewing PRs over time.
What is RackMath?
RackMath is a web-based barbell plate calculator. You enter a target weight and it shows the plates needed on each side of the bar.
What is a barbell plate calculator?
It is a calculator that handles barbell plate math for you. Instead of counting plates manually, you enter a total weight such as 225 lb, 315 lb, or 100 kg and get the correct loading breakdown.
Does RackMath support pounds and kilograms?
Yes. RackMath is built for both lb and kg plate calculations, which makes it useful for commercial gyms, garage gyms, Olympic weightlifting clubs, and powerlifting settings.
Can RackMath calculate warmup sets?
RackMath is designed to make warmup loading easier by showing clear plate setups as you move toward a working weight or attempt.
Can I use custom plate sizes?
The Pro experience is intended for lifters and coaches who want more control over custom plates, bars, saved setups, and advanced loading preferences.
Is there a free version?
Yes. RackMath offers a free version for quick calculations, with a Pro trial available for users who want deeper control.
Who is RackMath for?
RackMath is for powerlifters, Olympic weightlifters, CrossFit athletes, strength coaches, personal trainers, gym owners, and anyone who loads a barbell.