# SKC

> Calculates your "Steven Kruijswijk Coefficient" for Strava rides and shows it on your Strava ride page.

Canonical page: [https://chrome-stats.com/d/skc](https://chrome-stats.com/d/skc)

## Overview

- **ID:** `skc`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Timo Schinkel
- **Category:** social-communication,games-entertainment
- **Daily users:** 1
- **Version:** 0.1
- **Last updated:** 2021-03-10
- **First published:** 2021-03-09
- **Size:** 14 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/skc/)
- **Website:** [https://github.com/timoschinkel/skc](https://github.com/timoschinkel/skc)

## Description

SKC is a Firefox add-on that allows you to calculate your 'Steven Kruijswijk Coefficient' for Strava rides. This coefficient gives you an insight into the difficulty of your rides and can be seen on your Strava ride page.

## Rankings

- #104,638 — Overall

## Permissions and access

### Content script matches

- `www.strava.com`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/skc)