straddlyTools
Free tools for lifters and calisthenics athletes
Quick calculators for the numbers you need between sets. No account, no ads, made for a phone screen.
1RM calculator
Estimate your one rep max from any set, with a percentage chart and a mode for weighted pull-ups and dips.
Open the toolRPE chart and RIR calculator
The RPE to percentage chart for 1 to 12 reps, RIR equivalents and a calculator for your next load.
Open the toolBarbell plate calculator
Which plates go on each side for any target weight, in kg or lb, with your bar and collars.
Open the toolCalisthenics level test
Seven questions, from pull-ups to the muscle-up, to place you from beginner to elite and pick your next skills.
Open the tool