Race Time Predictor
Predict your potential marathon, half marathon, 10K, and 5K times based on a recent race result.
Pace Calculator
Calculate your running pace per mile or kilometer for any distance and time goal.
Heart Rate Zones
Calculate your 5 training zones using the Karvonen formula to train smarter and prevent burnout.
Age Grade Calculator
Compare your race times against world standards for your age and gender.
More than just calculators
Run and Grow isn't just about the numbers. It's about consistency. Use these tools to set your baseline, then let our gamified garden keep you moving.
