How to Calculate FTP
Learn the 20-minute test protocol, the ramp test alternative, and how to apply your FTP to Coggan zones.
Read Guide →Rider-Owned Data · Built in PublicPlatform Capabilities · Year-Round Riding
WattsUP Features
Four tools. Ride import and climb analysis, training-load modelling, smart-trainer control, and a free FTP calculator that doesn’t ask for your email.
One rider built this because nothing on the market kept indoor and outdoor riding in the same training-load model without also wanting to own the data.
Ride analysis: GPX and FIT files
Drop raw ride files from Garmin, Wahoo, Tacx, Hammerhead, or Strava exports. Interactive elevation profiles, grade-by-grade climb segmentation, VAM vertical speed, and pacing analysis.
● VAM Climbing Rate (m/h)● Normalized Power & TSS● Multi-Device Parsing
Explore Ride Analyzer →Training load: CTL, ATL and TSB
Model your Chronic Training Load (CTL), Acute Training Load (ATL), and Training Stress Balance (TSB) across seasons. The Banister impulse-response model adapted for real athletes.
● Banister Impulse-Response● 12-Week Sun Log Trends● Form & Fatigue Balance
Model Your TSB →Indoor: smart trainer and intervals
Bluetooth BLE and ANT+ smart trainer connection. ERG mode structured intervals, live 3-second power on screen, and bot-free group rides with real slipstream physics.
● BLE & ANT+ Sensor Pairing● ERG Mode Interval Player● Real Slipstream Physics
Launch Workout Player →Free tool: FTP and W/kg calculator
Instant Coggan 7-zone power targets, W/kg category ranking, and sweet spot power zones. No signup, no paywall, instant calculation in your browser.
● Coggan 7 Power Zones● W/kg Category Benchmarks● Free Browser Tool
Use Calculator →Training Science & Field Protocols
CTL, ATL & TSB Explained
Understand the Banister impulse-response model that powers every modern training platform.
Read Guide →VAM Climb Pacing
Discover how the pro peloton uses vertical ascent speed to pace mountain passes regardless of gradient.
Read Guide →