Explore running and race-pace calculators for pace, finish time, race predictions, splits, performance scoring, hills, altitude, treadmill workouts, training progression, and shoe mileage. Every tool is grouped by the running question it answers.
Pace, Time & Race Splits
Calculate pace, time, or distance; convert treadmill speed; and build practical goal, interval, and split plans for common race distances.
Race Prediction & Performance
Project performance across race distances, calculate VDOT and age-graded results, and compare general and marathon-specific prediction methods.
Hills, Altitude & Treadmill
Adjust pace for grade and altitude, measure climbing, and compare outdoor effort with treadmill incline and elevation gain.
Training, Efficiency & Gear
Evaluate cadence and running economy, plan gradual mileage changes, and estimate when running shoes will reach a replacement target.