C25K Program

Couch to 5K is a nine-week running plan from the NHS for absolute beginners — people starting from no running at all. Each week asks for three sessions with at least a rest day between them, and every session follows the same shape: a five-minute warmup walk, a prescribed pattern of running and walking, and a five-minute cooldown walk.

The name describes the trajectory rather than a distance test. The program builds time on your feet, finishing at 30 minutes of continuous running in week 9 — for many new runners that’s a little short of a full 5K, and that’s fine. Distance follows once the habit and the endurance are in place.

Asking a brand-new runner to simply go for a run is how most attempts end in the first week. Run-walk intervals fix the dose: each running interval is short enough to finish, and each walking recovery brings your breathing back down before the next one. In week 1 you run for only 60 seconds at a time — eight times, with 90-second walks between — so the running adds up while no single effort becomes a wall.

From there the plan progresses gradually: the runs lengthen, the walks shrink, and your body adapts on the rest days between sessions. Because every step up is small — 60 seconds to 90, three minutes to five — each new week feels like a stretch rather than a leap.

Weeks 1 through 4 each prescribe one session, run three times: eight 60-second runs in week 1, six 90-second runs in week 2, then sequences built around three-minute runs in week 3 and five-minute runs in week 4. Weeks 5 and 6 break that mold — each of their three days is a different workout, converting your interval fitness into continuous running.

Week 5 Day 3 is the program’s famous milestone: after three five-minute runs on day 1 and two eight-minute runs on day 2, day 3 is a single 20-minute run with no walking break — the first continuous run of the plan. Week 6 consolidates the breakthrough and ends with 25 unbroken minutes, then weeks 7, 8, and 9 are one continuous run each — 25, 28, and finally 30 minutes — repeated three times per week to graduation.

A session like week 1’s — eight runs and seven walks inside half an hour — is miserable to run off a watch face. A Couch to 5K timer carries the structure for you: it calls every switch from run to walk and back, so your attention goes to easy pacing while the intervals arrive on their own.

Every week of the program is above as a ready-to-run preset — one timer per week for the uniform weeks, and separate day 1, 2, and 3 timers for weeks 5 and 6. Pick the session you’re on and press start; if a jump feels steep, any preset opens in the editor so you can shorten a run or stretch a recovery and build back up.