Run Pace Calculator vs RunPredict

Stuck working out how far you'll go, how long it'll take, or what pace you need? Run Pace Calculator answers it in seconds, and lets you build interval workouts and see exactly how long they'll take before you head out. For runners of every level, from a first 5K to a marathon. CALCULATOR - Enter any two of time, distance, pace or speed and get the rest instantly. - Pace and speed side by side: min/km or min/mile, km/h or mph. - Pace table with the time for every kilometer or mile of your run. - My Distances: marathon, half marathon, 10K, 5K, 10 miles and 30K ready to use, plus up to 20 distances of your own. - My Paces: save your race and training paces and pick them with one tap. WORKOUT BUILDER - Build workouts from warm-up, run, recovery and cool-down steps. - Set each step by time, by distance or "until lap". - Target a pace, a heart-rate zone, a custom bpm range, or no target at all. - Repeat blocks for intervals (up to 50 reps), reorder by dragging. - Summary with total time, total distance and average pace. - Splits per kilometer or mile, with running total time. HEART-RATE ZONES - Set your own five zones in bpm, each with a matching pace range. - A step on a heart-rate zone uses that zone's pace, so your totals stay realistic. SETTINGS - Kilometers or miles throughout. - Choose your start screen and theme (light, dark or system). - Settings sync across your devices via iCloud. Available in English, Dutch, German, French, Spanish, Portuguese, Polish, Swedish, Thai and Indonesian.

Predict your race times. Train smarter. Run faster. RunPredict helps you estimate your performance across all distances, from 5K to marathon, using your pace or VO₂max (VMA). Whether you are preparing for a race or improving your training, get clear and actionable insights in seconds. **Key Features** Accurate race predictions Estimate your finish times for 5K, 10K, half marathon, and marathon based on your current fitness. Pace and effort zones Understand your training zones (easy, tempo, threshold) and adapt your sessions. Instant pace calculator Adjust your pace and see predictions update in real time. Custom distances Add any race distance and get instant predictions. Performance insights View pace ranges and expected effort to better plan your races and training. **Built for runners** Whether you are targeting a sub-20 5K, improving your 10K, or preparing for a marathon, RunPredict helps you train with precision and confidence.