FTP Altitude Calculator

The WattsQuest FTP Altitude Calculator is an essential tool for cyclists and endurance athletes who want to understand how altitude affects their Functional Threshold Power (FTP). Whether you’re training for a mountain event, planning a high-altitude ride, or simply curious about performance changes at elevation, this calculator helps you visualize and quantify the impact of altitude on your cycling power.

How to Use the FTP Altitude Calculator

  1. Enter your FTP at sea level (in watts) to see how it changes with altitude.
  2. Toggle between “Acclimated” and “Non-Acclimated” to reflect your adaptation to altitude.
  3. Switch between metric (meters) and imperial (feet) for altitude display.
  4. View the table and chart to see adjusted FTP values and percentage reductions at different altitudes.

Tip: Use this calculator to plan your pacing strategy for high-altitude races, adjust your training zones, or compare acclimation effects.

What Does the FTP Altitude Calculator Do?

This tool uses scientific data to estimate how your cycling power decreases as you ascend to higher elevations. It accounts for both acclimated and non-acclimated states, giving you realistic expectations for your performance. The table and chart make it easy to see the numbers at a glance, so you can make informed decisions about your training and racing.

Key Features

Why Use WattsQuest’s FTP Altitude Calculator?

Altitude can have a significant impact on your cycling performance. By understanding how your FTP changes, you can better prepare for events, optimize your training, and avoid surprises on race day. Whether you’re a competitive cyclist, coach, or enthusiast, this tool gives you the insights you need to ride smarter at any elevation.

Altitude (m)Adjusted FTP (watts)Reduction (%)
02500.1%
2502480.7%
5002471.4%
7502442.2%
10002423.2%
12502394.3%
15002365.5%
17502336.9%
20002298.5%
225022410.2%
250022011.9%
275021613.8%
300021015.9%