Vitality AI calculators
A suite of powerful, free tools to help you plan, perform and analyse your training and racing — no account needed. Use them on their own, or let the coach fold them into your plan.
Free calculators, built on the science.
The same physiology behind the coaching, distilled into quick tools you can use anytime — for free.
Free, forever
Every calculator is free to use — no account, no sign-up, no paywall. Just open one and go.
Built on the science
Each tool uses established formulas and the same physiology behind the coaching — so the numbers are ones you can trust.
Practical, not theoretical
They're built to answer real questions: how much should I drink, what pace should I hold, what pressure should I run?
Cycling
Running
Things people often ask.
Do I need an account to use these?
No. Every calculator is free and open — just click and use. No sign-up, no email, no catch.
Are these the same tools the coach uses?
They're built on the same science. The coach folds these calculations into your plan automatically; here you can run them yourself anytime.
Which devices do they work on?
All of them. The calculators are web-based and work on your phone, tablet or desktop.
Want these folded into a full plan?
The calculators are free on their own. Connect a plan and the coach runs the numbers for you, every week, and adapts them as you train.
See the plan