Running Pace Calculator
Calculate pace, speed, and ETA from distance and time. Ideal for runners, coaches, and race planning.
How the Running Pace Calculator Works
Enter a distance and the time you took to complete it. The calculator converts the total time to seconds, then computes pace as seconds per unit distance and speed as distance divided by hours. If you provide an ETA distance, the tool multiplies pace by the target distance to provide an estimated finish time.
This tool supports both kilometres and miles and performs unit conversion for ETA when required. All calculations run in your browser only; nothing is saved or transmitted.
Use this calculator for race planning, training sessions, pacing strategies, and quick conversions between pace and speed.
Frequently Asked Questions
What is pace?
Pace is the time taken to cover a unit distance, shown as minutes and seconds per kilometre or per mile.
What is speed?
Speed is distance divided by time and is shown as kilometres per hour or miles per hour.
Is the ETA exact?
ETA is an estimate assuming a constant pace. Real race times vary due to terrain, fatigue, and conditions.
Is my data stored?
No. All computations occur in your browser only and nothing is sent or stored.