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Plank Timer
Pick your level, press Start and get down on your forearms during the 10-second get-ready. Hold until the long tone, rest, repeat.
Round 1 / 3
3 holds of 20 seconds with 40 seconds of rest. Drop to your knees if your hips sag.
3 holds of 45 seconds with 30 seconds of rest.
4 holds of 60 seconds with 30 seconds of rest. Try a harder variation on the last two.
One 60-second hold, as a test or a finisher. Stop early if your form goes.
Plank hold times by level
| Level | Holds | Hold | Rest | Total |
|---|---|---|---|---|
| Beginner | 3 | 20 s | 40 s | 2 min 20 s |
| Intermediate | 3 | 45 s | 30 s | 3 min 15 s |
| Advanced | 4 | 60 s | 30 s | 5 min 30 s |
| Single hold | 1 | 60 s | None | 1 min |
Totals leave out the 10-second get-ready. The levels are starting points: if you cannot hold a straight line for the whole time, use the level below or shorten Work with the stepper.
How to use it
- Put the screen on the floor in front of you or lean it against a wall where you can see it with your head in line with your spine.
- Choose a level and press Start. Use the 10-second get-ready to set your elbows under your shoulders and step your feet back.
- Hold while the screen says Plank. Three short beeps count down the end of each hold, so you can keep your eyes on the floor.
- Lower your knees at the long tone and rest until the next beeps. When a level feels steady on every hold, add 5 to 10 seconds to Work.
How long should you hold a plank
Long enough to work, short enough to stay straight. Many coaches consider holds of up to about a minute or two plenty for general fitness, and prefer several short holds with good form over one long shaky one. The plank trains your trunk to resist sagging. Once your hips drop or your lower back arches, the muscles you are training have stopped doing the job and your spine is taking the load, so the set is over, whatever the clock says.
That is why the presets here are sets with rest. Three 20-second holds give a beginner a full minute of good position. A single 60-second attempt often gives 25 good seconds and 35 poor ones.
Form cues and how to progress
Elbows under shoulders, forearms parallel. Make a straight line from head to heels. Squeeze your glutes, pull your kneecaps up, and brace your stomach as if someone were about to poke it. Look at the floor a little ahead of your hands. Keep breathing; slow breaths out through the mouth help you hold the brace.
Progress by adding 5 to 10 seconds per week until you reach a minute. After that, make the plank harder instead of longer: side plank, shoulder taps from a straight-arm plank, or feet raised on a step. To make it easier, keep your knees on the floor and hold the same straight line from head to knees. Long isometric holds raise blood pressure while they last, so people with high blood pressure should ask a doctor about them first and should never hold their breath during a plank.
Common mistakes
- Letting the hips sag. It moves the load to the lower back. End the hold when it happens.
- Piking the hips up. It feels easier because it is: the core has stopped working against gravity.
- Holding your breath. Count slow breaths; a 20-second hold is about four of them.
- Chasing a multi-minute record. Past a couple of minutes you are mostly testing shoulder endurance and patience.
- Craning the neck to watch the timer. Listen for the beeps and keep your head in line.
Questions people ask
How long should a beginner hold a plank?
Start with 20 seconds, three times, with 40 seconds of rest between holds. If 20 seconds is too long to hold a straight line, do the same holds from your knees.
Is a 1 minute plank good?
Yes. A clean 60-second forearm plank is a solid standard for general fitness. When you can do it comfortably, move to several 60-second holds or a harder variation.
How many planks should I do a day?
Three or four holds in one session is enough for most people. Doing them on most days is common because the load is low, but take a day off if your lower back or shoulders feel sore.
Can I use this as a 30-day plank challenge timer?
Yes. Start on Beginner and add 5 to 10 seconds to Work each week with the stepper; the page remembers your setting. Judge progress by clean holds, not by the longest single time.
Why do I shake during a plank?
Shaking is normal muscle fatigue as fibers tire and others take over. Mild trembling with a straight body is fine. If the shaking comes with sagging hips, stop the hold.