Pace Calculator vs Pacecast

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

Pacecast is a race time calculator that doesn't stop at one number. Enter one recent run — or let Apple Health do it for you — and see the time you'd run today, the time you'll run 12 weeks from now, and the week-by-week plan that gets you there. Connect Strava (Pro) or Apple Health, and Pacecast updates your forecast on its own. It reads your real runs and recalculates your predicted time — no spreadsheets, no re-entering workouts, your number just keeps getting sharper as you train. YOUR FORECAST, FROM REAL DATA • Start from a recent race or a hard training run • Or connect Apple Health and use your real mileage automatically • Built on a proven race-prediction model with a realistic weekly-gains curve — estimates, not guarantees • See exactly which run your forecast is built on — and swap it if we picked the wrong workout THE REVEAL Watch your predicted time tick down from today's fitness to your 12-week forecast. Ambitious, but honest. PACECAST PRO • Week-by-week target splits for the full 12 weeks • Forecasts for every distance — 5K, 10K, half marathon, and marathon • What-if scenarios: see how adding weekly mileage changes your finish time • Strava sync: your forecast keeps itself current from your real training • Apple Health auto-refresh keeps your baseline current BUILT FOR RUNNERS • Works in miles or kilometers • A Monday morning notification that tells you what last week actually bought you • Sign in with Apple or Google and your forecasts follow you • A dark, focused design where the numbers are the star Free to try: complete onboarding and get your full forecast and final predicted time at no cost. Upgrade to Pacecast Pro to unlock the weekly curve, every distance, what-if scenarios, and automatic updates. Pacecast Pro is an auto-renewing subscription ($59.99/year or $12.99/week). Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://broweleitventures.com/pacecast-privacy-policy