CALIBR Tools
Free hybrid training calculators
Quick, no-signup tools for the numbers hybrid athletes actually use: estimated one-rep max, running pace and a weekly split that fits your days.
- 1RM calculatorEstimate your one-rep max from any set, and see the training loads that follow from it.
- Running pace calculatorTurn a target time into a pace per kilometre and mile, plus your training zones.
- Hybrid split plannerGet a week structure for your available days, split between lifting and running.
Stop guessing the balance
CALIBR builds one adaptive plan across strength, running, recovery and fuelling — and recalibrates it as your training data comes in.
Build my plan