Pace Calculator vs Pace Calculator

Enter one race result, or just enter your VDOT. Get your fitness score and five science-backed training zones instantly — free. Pacesmith uses Jack Daniels' Running Formula to calculate your VDOT score from any recent race. You'll see exact pace ranges for Easy, Marathon, Threshold, Interval, and Repetition training — the same zones elite coaches prescribe. VDOT & TRAINING ZONES (FREE) - Enter any race distance and finish time - Or enter your VDOT directly if you already know it, and watch the paces update as you adjust it - Get your VDOT fitness score based on Daniels' Running Formula - See five training zones with precise pace ranges, in kilometres or miles - Track how your fitness changes over time UNLOCK ALL TOOLS — ONE-TIME PURCHASE Three additional calculators, yours forever. No subscription. No account. RACE PREDICTOR Predict your finish time at every standard distance — from 1500m to the marathon — based on your current VDOT. Enter one result, see them all. PACE CALCULATOR A three-way solver: enter any two of pace, time, and distance to calculate the third. Get per-kilometre or per-mile splits for any run. SPLIT PLANNER Build a race-day pacing plan with even or negative split strategies. See your target time for every single kilometre or mile. BUILT FOR RUNNERS WHO CARE ABOUT THE DETAILS - Jack Daniels' VDOT formula — not guesswork - Last 50 calculations saved automatically - Clean, fast interface — no ads, no clutter - Works offline - Available in 15 languages - One-time purchase unlocks everything, forever

Any two numbers, and the rest solves itself. Enter a distance and a goal time and you get the pace. Enter a pace and a distance and you get the finish time. Distance, time, pace and speed — give it any two and the other two fill in, in kilometres or miles. THEN IT HANDS YOU SOMETHING Most pace calculators show you a number and stop there. This one builds a race plan card: your goal, your pace, and a split table for every segment — laid out so you can send it to a training partner or keep it on your phone for race morning. WHAT'S INSIDE • Four-way solver: distance, time, pace, speed • 20 race distances from 400 m to 100K, each with a note on what it asks of you • Split tables in kilometres, miles, or track laps • Even, negative, positive and fast-finish pacing strategies • Equivalent times across distances, so a 10K result suggests a half marathon target HOW IT'S BUILT Distances are kept in metres and times in seconds. Everything else is derived from those two and rounded only when it is shown to you, so the numbers stay consistent between the solver, the splits and the card. • No account. Nothing to sign up for. • No paywall and no subscription. Every feature is free. • No data collected. Your saved plans never leave this iPhone. • Works completely offline, including in airplane mode on the start line. Equivalent times come from a standard endurance model (Riegel, 1977). They are estimates, not predictions. This app is a calculator and planning tool — it is not coaching, training prescription, or medical advice.