PaceCalc vs Pace Calculator

Pace Calculator — The Essential Running Math Tool Instantly calculate pace, time, or distance for any run. Enter any two values and get the third — it's that simple. THREE CALCULATORS IN ONE • Pace Calculator: Enter distance and time to find your pace • Time Calculator: Enter pace and distance to find your finish time • Distance Calculator: Enter time and pace to find how far you'll go BUILT FOR RUNNERS • Quick distance presets — tap once for 5K, 10K, Half Marathon, or Full Marathon • 400m lap split times for track workouts • Speed display in km/h or mph • Switch between kilometers and miles anytime DESIGNED FOR EASE • Intuitive scroll wheel pickers — no typing required • Clean, distraction-free interface • Dark and light mode support • Results update instantly as you scroll Whether you're training for your first 5K or chasing a marathon PR, Pace Calculator gives you the numbers you need in seconds.

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