Free Training Calculators

Train smarter with our free SPC training calculators.

Take the guesswork out of your training numbers.

Use our free SPC calculators to work out training zones, race pace, swim targets, fuelling needs and race-day predictions. Whether you are planning your next block, preparing for an event or checking your current numbers, these tools give you a clearer starting point.

Free Training Calculators

Simple coaching tools for runners, triathletes and endurance athletes.

From training zones and race pace to fuelling and swim targets, these free SPC calculators help you take the guesswork out of training and turn your numbers into a plan you can actually use.

Choose Your Calculator

Threshold & Zone Calculators

Work out your training zones from heart rate, pace, FTP or power. Turn test results into practical targets for running, cycling and triathlon sessions.

Includes:

Heart rate zones
Run pace zones
Cycling FTP zones
Running power zones

Running Calculators

Estimate race times, pacing and fuelling for running events. Use recent results or training efforts to predict finish times and build smarter race targets.

Includes:

Race time predictor
Pace planning
Split calculator
Running fuelling calculator

Triathlon Calculators

Plan swim pace, race splits and fuelling for triathlon training and race day. Useful for sprint, Olympic, 70.3, Ironman and long-course athletes.

Includes:

CSS swim pace
Swim time estimator
Triathlon race predictor
Triathlon fuelling calculator

Fun Calculators

Tongue-in-cheek tools for endurance athletes who like their numbers with a bit of banter. Useful, slightly dangerous for the ego, and very SPC.

Includes:

SPC excuse generator
Cut-off predictor
“How screwed am I?”