Training guide

Couch to 5K Training Guide

Couch to 5K is a beginner program that builds from walking to running 5 kilometres over about nine weeks. You train three days a week, alternating running and walking intervals that gradually lengthen the running portions. By the final weeks you run 5K continuously. Keep every session conversational — easy effort is the whole point.

Plan length
8–9 weeks
Weekly volume
3 sessions, ~60–90 min total

Overview

Couch to 5K (often written C25K) is the most common on-ramp into running. It assumes no running background and uses run/walk intervals so your muscles, tendons, and aerobic system adapt without the overload that causes early injuries.

The structure is simple: three runs a week, never on back-to-back days, with the running intervals getting longer and the walking breaks getting shorter each week. Consistency matters far more than speed — finishing each session feeling like you could have done a little more is exactly right.

A typical training week

MonRest or easy walk
TueRun/walk intervals (e.g. 8 × 1 min run / 90s walk)
WedRest
ThuRun/walk intervals
FriRest
SatRun/walk intervals (slightly longer)
SunRest or cross-training

Key workout types

Run/walk intervals

Build running time gradually while limiting impact load.

Easy walks

Active recovery that keeps you moving on off days.

Cross-training

Optional cycling or swimming to add aerobic work without extra pounding.

Pacing reference

Finish times across a range of even paces. Find your target, then use the pace calculator for exact splits.

Pace /kmPace /miFinish
5:008:0325:00
5:308:5127:30
6:009:3930:00
6:3010:2832:30
7:0011:1635:00

Frequently asked questions

How long does couch to 5K take?

Most plans run 8–9 weeks with three sessions a week. If a week feels hard, repeat it before moving on — there is no penalty for taking longer.

How fast should I run during couch to 5K?

Run easy enough to hold a conversation. The running intervals are about time on feet, not pace. If you are gasping, slow down.

Can I do couch to 5K on a treadmill?

Yes. The treadmill makes interval timing easy and the surface is forgiving. Set a 0.5–1% incline to better mimic outdoor effort.

What if I miss a week?

Pick up where you left off, or repeat the last week you completed. A short break will not undo your progress.

Run your plan smarter with Pacexis

Pacexis sits between your plan and your watch — pacing every session with intent and learning from every run.

Explore Pacexis