Free tool

Run/Walk Interval Generator

Two questions and you get a full beginner session: warm-up walk, run/walk intervals, cooldown, with the totals worked out. Free, no signup, nothing to install.

Including the warm-up and cooldown walks.

Session length

Be honest. Picking lower than you think costs you nothing.

Current running ability

Optional. It only changes the tip below.

Goal

Your session

  1. 5 minWarm-up walk, brisk
  2. Repeat× 6
  3. 1 minEasy run
  4. 2 minWalk
  • 5 minCooldown walk
  • Total

    28min

    Running

    6min

    Walking

    22min

    Intervals

    6

    Three of these a week, never two days in a row. Getting all three done matters more than how any single one felt.

    How the generator builds your session

    It starts from the one number that matters: how long you can currently run without stopping. Everything else follows from that.

    1. 1Warm-up. A 5 minute brisk walk, on every session, no exceptions.
    2. 2Run interval. Set to what you can already do, not what you would like to do. If a minute is your limit, a minute is the interval.
    3. 3Walk interval. Long enough for your breathing to settle. Around 2 minutes early on, shorter once your run intervals pass five minutes.
    4. 4Rounds. As many as fit inside the time you picked.
    5. 5Cooldown. Another 5 minute walk, so you are not stopping dead.

    This is a planning tool, not a personalized program

    It builds a general beginner session from the numbers you enter. It does not know your health history and it is not medical advice. If you have a health condition or a current injury, talk to a doctor or physical therapist before starting.

    Why run/walk works for beginners

    Running until you have to stop puts a hard ceiling on your session, and that ceiling arrives early for a beginner. Alternating short runs with planned walks moves the question from how long can you run to can you run one more minute. The answer to that is usually yes, which is why the session gets finished.

    You end up with more total running than you would have managed in one block, at an effort you can repeat two days later. The longer explanation is here.

    Picking your run interval honestly

    If you are unsure, pick the row below the one you think you are.
    You can currently runStart withWalk
    Under a minute30 seconds2 min
    About a minute1 min2 min
    Two or three minutes2 min2 min
    About five minutes4 min90 sec
    Ten minutes or more8 to 10 min2 min

    Scroll the table sideways to see every column.

    Under-picking costs you nothing. Over-picking costs you the session, and sometimes the week after it.

    How to progress week to week

    Add about a minute to the run interval each week and keep the total session length roughly the same. Once the run intervals pass five minutes, start taking time off the walk instead.

    Three sessions a week, never two days in a row. The full eight week version is in the beginner running plan.

    Repeat a week whenever it feels rough

    There is no penalty for doing week four twice. Repeating is training, not lost time.

    Running the intervals without watching a timer

    The awkward part of run/walk is the timing. Checking a watch every ninety seconds pulls you out of the run and makes each interval feel twice as long.

    The fixes, in order of how well they work: an app that calls the intervals out loud, a watch with interval alerts, or a playlist where you have counted the track lengths. The first one is the only one you can genuinely forget about.

    Frequently asked questions

    What is a good run/walk ratio for a beginner?

    1 minute of running to 2 minutes of walking, repeated eight times, suits most people starting from zero. If a minute feels like too much, start at 30 seconds and build from there.

    How long should a beginner run/walk session be?

    Around 30 minutes including the warm-up and cooldown walks. Most of that is walking in the first few weeks, which is intentional.

    Should I walk or stand still during the recovery?

    Keep walking. Standing lets everything tighten up and makes the next run interval harder than it needs to be.

    Can I use this on a treadmill?

    Yes. Set a walk speed around 3.0 to 3.5 mph and a jog speed around 4.0 to 5.0 mph and switch between them at each interval. See the treadmill running plan.

    How many times a week should I do this?

    Three, with a rest day between each. A fourth is worth adding after about two months of consistency.

    The full guides

    Related reading