Pace Calculator vs HR Zones Weekly

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

HRZones helps you review how much workout time you spend in each heart-rate zone. The app reads heart-rate and workout data from Apple Health, groups your training time into clear weekly zones, and shows each zone with its duration and bpm range. You can move between weeks to compare recent training and adjust zone ranges to match your personal fitness targets. Apple Watch support keeps your zones close during training, with synced range settings between iPhone and watch. Features: - Weekly heart-rate zone breakdown - Time spent in each zone - Editable bpm ranges for each zone - iPhone and Apple Watch support - Apple Health workout and heart-rate integration - Simple dark interface built for quick review