⏵ Free tools · No signup
Free Trail & Ultra Running Tools
Ten free calculators, filed by the job in front of you: pacing the race, fueling it, and training for it. Every one runs on the same science the Summit Line training app uses, no login required.
⏵ 01 · 5 tools
Pacing
How long the thing will take, and whether you beat the clock.
- Race Time CalculatorWhen you have a goal race with real vert and want a finish prediction that charges you for the climbing.
- Trail Run Time CalculatorWhen you know a route's distance and gain and want to know how long you'll actually be out there.
- Ultra Cutoff CalculatorWhen the race has cutoffs and you'd rather learn your cushion at the kitchen table than at mile 40.
- Treadmill Pace ConverterWhen you're stuck on the belt and want the incline and speed to match an honest outdoor effort.
- Race Equivalent CalculatorWhen you just raced one distance and want a straight answer on what that's worth at another, 5K to 100 miles.
⏵ 02 · 3 tools
Fueling
What to eat and drink so the last third doesn't get ugly.
- Ultra Fueling CalculatorWhen you're writing the race-day nutrition plan and need carbs, fluid, sodium, and caffeine per hour, scaled to you and the heat.
- Gels Per Race CalculatorWhen you're packing the vest and need the actual count of gels, chews, and drink-mix scoops to carry.
- Sweat Rate CalculatorWhen you're done guessing at hydration: weigh in, weigh out, and get your real fluid and sodium numbers.
⏵ 03 · 2 tools
Training
Set your paces so easy days stay easy and hard days count.
⏵ These are the generic versions
Summit Line dials every one of these to YOUR actual course, your training, and your projected splits, then builds a race-day plan you have rehearsed instead of guessed.