Runtools Calc

RunTools Calc is a free training calculator built for runners and coaches who care about accuracy.

Most running apps overcomplicate simple math. RunTools Calc focuses on what actually matters: splits, pace, and performance clarity—presented in a clean, readable format.

Features

• Calculate splits for any distance and total time
• View pace in min/mi, min/km, mph, and km/h
• Simple vertical split layout designed for quick reference
• Accurate pace formatting (no broken times like 3:60)
• Preset distances including Mile, 8K, 10 Mile, 15K, Half Marathon, and Marathon
• VO₂ calculator with fitness-level insight
• Built for athletes, coaches, and serious training

Whether you’re planning workouts, checking race pace, or coaching athletes, RunTools Calc gives you the numbers you need—without noise.

Train smarter. Run with precision.