Free calculators for pace, race predictions, calories & splits — plus the best running gear of 2026.
Enter distance + time to get pace, or enter pace + distance to get finish time.
Enter a recent race result and predict your time at any distance using the Riegel formula.
Estimate how many calories you burn based on your weight, distance, and pace.
Get per-mile or per-km splits for your target finish time.
Top-rated running shoes trusted by runners worldwide.
The go-to daily trainer. ReactX foam delivers 13% more energy return. Breathable Flymesh upper fits all foot types. Best all-around shoe for new and experienced runners.
Shop on Amazon →Maximum cushioning with PureGEL technology. FF BLAST PLUS ECO midsole absorbs impact on long runs. Engineered knit upper with 4D guidance system for stability.
Shop on Amazon →Smooth transitions with DNA LOFT v2 cushioning. Neutral support for road running. 3D Fit Print upper hugs your foot without pressure points. A best-seller for a reason.
Shop on Amazon →Premium Fresh Foam X midsole delivers plush, responsive cushioning. Hypoknit upper adapts to your foot. Perfect for long distance training and everyday runs.
Shop on Amazon →Lighter and bouncier than ever. Compression-molded EVA midsole with early-stage Meta-Rocker. Breathable engineered mesh. A cloud-like ride mile after mile.
Shop on Amazon →PWRRUN+ cushioning for soft yet responsive feel. FormFit technology molds to your foot. Lightweight, versatile daily trainer built for tempo runs and easy days alike.
Shop on Amazon →GPS watches to track every run with precision.
Vibrant AMOLED display with training readiness, daily suggested workouts, race predictor, and up to 13 days battery life. Multi-band GPS for pinpoint accuracy.
Shop on Amazon →Precision dual-frequency GPS, 36-hour battery, titanium case. Advanced running metrics including stride length and ground contact time. Best for Apple ecosystem runners.
Shop on Amazon →Only 30g with nylon band. Dual-frequency GPS, 17-day battery, built-in running power. Training load, recovery tracking, and free training plans. Best value GPS watch.
Shop on Amazon →Lightweight, easy-to-use GPS watch for beginner runners. Suggested workouts, PacePro pacing, and up to 2 weeks battery. Built-in coach to help you improve.
Shop on Amazon →The small gear that makes a big difference on every run.
Open-ear bone conduction headphones. Hear music and your surroundings. IP55 water resistant, 10hr battery, lightweight titanium frame. The runner's headphone choice.
Shop on Amazon →No-bounce tubular belt holds phone, keys, gels, and cards. Moisture-wicking fabric stays put on any run. Machine washable. The original bounce-free running belt.
Shop on Amazon →18oz insulated handheld flask with adjustable hand strap. Keeps water cold for hours. Zippered pocket for essentials. Perfect for runs up to 10 miles.
Shop on Amazon →Deep heel pocket prevents bunching. Hand-linked seamless toe. Drynamix moisture-wicking fiber keeps feet dry. The best-selling running sock in specialty run shops.
Shop on Amazon →Invisible, non-greasy anti-chafe balm. Lasts through sweat and rain. Vegan, allergen-free formula. A marathon essential — apply before every long run.
Shop on Amazon →Enter your age to estimate your training heart rate zones.
Check your body mass index and see how it relates to running performance.
Quick reference guide for beginners and experienced runners alike.
Follow the 10% rule: never increase your weekly mileage by more than 10%. This prevents overuse injuries and keeps you running consistently. Most new runner injuries come from doing too much, too soon.
80% of your runs should be at conversational pace. You should be able to speak in full sentences. Easy runs build your aerobic base, which is the foundation of all running performance.
Start every run with 5-10 minutes of walking or very easy jogging. Before speed work, add dynamic stretches: leg swings, high knees, butt kicks. Save static stretching for after your run.
For runs under 60 minutes, water is usually enough. For longer runs, aim for 30-60g of carbs per hour. Practice your race-day nutrition during training so your stomach is prepared.
Your body gets stronger during rest, not during the run itself. Take at least 1-2 full rest days per week. Active recovery like walking, yoga, or easy cycling counts as rest.
2-3 sessions per week of basic strength work reduces injury risk by up to 50%. Focus on squats, lunges, planks, and hip exercises. Strong glutes and core make you a faster, more resilient runner.
Quick reference for standard race distances in miles and kilometers.
| Race | Kilometers | Miles |
|---|---|---|
| 5K | 5.0 km | 3.107 mi |
| 8K | 8.0 km | 4.971 mi |
| 10K | 10.0 km | 6.214 mi |
| 15K | 15.0 km | 9.321 mi |
| 10 Mile | 16.093 km | 10.0 mi |
| Half Marathon | 21.0975 km | 13.109 mi |
| Marathon | 42.195 km | 26.219 mi |
| 50K Ultra | 50.0 km | 31.069 mi |
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