Elevation gain calculator for running routes. Upload a GPX file to calculate total ascent/descent and see where the climbs happen.
Total elevation gain tells you how demanding a route is, but where it happens matters just as much. Use a profile to plan pacing.
Every page on this site has a Markdown mirror at the same path with a .md suffix (for example /calculator.md), and honors an Accept: text/markdown request header on the HTML URL. The calculations here are also available as callable tools through a free public MCP server — no account or API key.