Running calculators for smarter training, pacing, and race analysis.
Use ITC’s running calculators to plan race pace, predict performances, analyze workouts, break down splits, and understand the tactical demands of track, road, and marathon racing.
Choose a running calculator
Start with a general pace calculator, then move into event-specific tools for the 400m, 800m, 1500m, marathon, workout prediction, race prediction, and split analysis.
Running Pace Calculator
Calculate pace per kilometre, pace per mile, speed, and track splits from any race distance and time.
Training Pace Calculator
Estimate easy, steady, tempo, threshold, interval, and repetition paces from a recent race result.
800m Split Calculator
Plan 800m race models with 200m, 400m, 600m, first lap, second lap, and pacing-risk analysis.
1500m Pace Calculator
Plan 1500m pacing with 300m, 400m, 800m, 1200m, final 400m, and final 300m checkpoints.
Marathon Pace Calculator
Calculate marathon pace per kilometre, pace per mile, and key race splits from 5K to the finish.
400m Split Calculator
Model 400m race execution with 100m, 200m, 300m, second-half fade, and speed endurance analysis.
Race Predictor Calculator
Estimate equivalent performances across 400m, 800m, 1500m, mile, 5K, 10K, half marathon, and marathon.
Last Lap / Kick Calculator
Calculate the final 400m, 300m, 200m, or 100m needed to hit a goal time from any race position.
Workout Predictor Calculator
Estimate race potential from a key workout using rep distance, rep time, recovery, and workout type.
Split Breakdown Analyzer
Analyze cumulative or lap splits to understand pacing pattern, fade, surge, consistency, and execution.
How to use the ITC calculator library
These tools are designed to work together. A runner can calculate goal pace, model race splits, compare predicted performances, analyze workouts, and review actual race execution.
Coach-led performance tools for runners.
ITC calculators are built to support athletes, coaches, and running fans who want more than simple numbers. They are designed to explain pace, tactics, fitness, and race execution.
Start With Training Paces