Paste a RideWithGPS route and rider profile to estimate ride time, wind/temp exposure, and calorie needs.
Checkpoints
Edits here apply to the downloaded route card, not the stats above.
Dist (mi)
Time
Split
Name
Climbs
Dist (mi)
Length
Avg grade
Rating
How these numbers are calculated
Time & speed
Simulated segment-by-segment from your weight, power, and the route's actual grade — not a flat average speed.
Wind
Distance-weighted headwind/tailwind component along the route's actual heading and time-of-day. Forecasts get less reliable more than ~15 days out.
Avg heat index & fluid target
Heat index (temperature + humidity) is time-weighted across the ride, since humidity limits evaporative cooling and drives sweat rate more than raw temperature. Fluid target ramps from a ~20oz/hr baseline up to a 40oz/hr cap as heat index rises above 65°F — a rough guide, not a substitute for your own sweat-rate testing. Only shown when a ride date/wind forecast was provided.
Calories burned
Assumes ~24% gross cycling efficiency, and accounts for reduced effort while coasting/braking on descents — not just power × time.
On-bike calories consumed
Your on-bike fueling rate (kcal/hr) × estimated ride time — the total calories you'd eat/drink during the ride if you stick to that rate.
On-bike deficit/surplus
Calories burned minus on-bike calories consumed. A deficit means the ride burns more than your fueling rate replaces (made up from body stores); a surplus means you're fueling more than the ride burns. Colored green under 1500 kcal deficit (or any surplus), yellow up to 2000 kcal, red beyond that — a rough bonking-risk signal based on typical glycogen stores, not a hard rule.
Off-bike food
On-bike deficit/surplus plus a Mifflin-St Jeor BMR estimate for the rest of the day's non-riding hours.
Fueling warning
Flags an on-bike rate outside the standard 60–90g carbs/hour endurance guidance, for rides over 2.5 hours.
Route card climbs
Sustained stretches of 3%+ grade, rated 1-5 stars by an informal grade% × length score — a rough at-a-glance signal, not an official climb category.
Editing checkpoints/climbs
Remove a row with ×, or add your own stop below the checkpoints table. These edits only affect the downloaded route card, not the stats above — and reset if you run the analysis again.
