The best treadmill workouts for every type of runner

Woman running on a treadmill in a gym
(Image credit: Shutterstock)

The best treadmill workouts will make sure you spend your indoor training time wisely, and get an effective session done no matter how much time you have to spare. Whether you’re completely new to running or a seasoned athlete preparing for an event, the treadmill can be a fantastic way to get your training done without having to go outdoors, as long as you have the right workout plan in place.

We’ve rounded up several of the best treadmill workouts below that you can do on any machine, without needing an internet connection or a smartphone. Every runner will have their own specific goal pace, so rather than setting a certain pace target in each workout we’ve broken them down by time and effort, with the latter being rated out of 10. As a general guide, your easy pace should be around 3-4 out of 10 and you should be able to hold a conversation while running at it.

If you do have internet and a phone available then using one of the best running apps can be a great way to find more treadmill workouts to liven up your indoor running. All of the best treadmills will also have a wide variety of preset workouts available to try, whether they’re simple sessions or full instructor-led classes, which you get on machines like the Peloton Tread.

The best treadmill workouts 

People running on treadmills at the gym

(Image credit: Shutterstock)

The best treadmill workout for beginners 

If you’re new to running on the treadmill and you’re looking for a workout that’ll help you build your fitness, this treadmill workout will gradually build your pace up, with walking intervals in between each set. 

5 minutes: walk or jog to warm up
2 minutes: turn the treadmill to your 3 out of 10 effort and jog
1 minute: walk to recover
2 minutes: add one speed level and jog (so if your last interval was at a 3, this should be at a 4)
1 minute: walk to recover
1.5 minutes: again, add one speed level on from your last interval and jog
1 minute: walk to recover
1 minute: add one level on from your last interval. This should be your fastest and be a 7 out of 10 effort.
1 minute: walk to recover
45 seconds: do the same speed as your last interval for this final short burst.
1 minute: walk to recover
5 minutes: walk or jog to cool down 

The best HIIT treadmill workout 

HIIT, or High-Intensity Interval Training, has proven to be one of the most effective ways to torch calories in a short amount of time. As its name suggests, HIIT training involves intervals of high intensity, followed by rest. This treadmill workout will help raise your heart rate and build your fitness. 

5 minutes: walk or jog to warm up
1 minute: fast pace run, should feel like a seven out of 10 effort
1 minute: recover at an easy pace
Repeat the steps above 10 times
5 minutes: walk or jog to cool down 

The best treadmill workout to try at an incline 

Like running up hills, training at an incline can help you build strength in your legs, which is important as a runner. Running at an incline will work your quads, glutes and calves more than running on the flat. Research has found that it burns more calories, too. Think about taking shorter steps when you are running on an incline and avoid leaning too far forward.  

5 minutes: warm-up at an easy pace
1 minute: increase your pace and run with the treadmill set at a 2% incline
1 minute: holding your pace, up the incline to 4%
1 minute: now up the incline to 6%
1 minute: 60-seconds at 8% incline - you can do this!
2 minutes: Drop the incline and return to your easy pace for 2 minutes recovery
1 minute: increase your pace and raise the incline to 2%
1 minute: holding your pace, raise the incline to 4%
1 minute: holding your pace, raise the incline to 6%
1 minute: 60-seconds at 8% incline
2 minutes: Return to the flat and jog it out for 2 minutes recovery
1 minute: increase your pace and raise the incline to 2%
1 minute: holding your pace, raise the incline to 4%
1 minute: holding your pace, raise the incline to 6%
1 minute: 60-seconds at 8% incline
2 minutes: Return to the flat and jog it out for 2 minutes recovery
5 minutes: cool down at an easy pace

The best walking treadmill workout

One of the most popular walking treadmill workouts is the viral ‘12-3-30’ TikTok treadmill workout, which was made famous by social media star, Lauren Giraldo. It’s now been shared by more than 2.7 million people, who have raved about the results of this easy-to-remember cardio workout. I tried the 12-3-30 treadmill workout, too. Here’s how to do it: 

Warm-up for 5 minutes with a brisk walk on the treadmill at 0% incline
Set the treadmill to a 12% incline
Turn the speed to 3mph
Walk for 30 minutes
Cool down for 5 minutes, walking on the treadmill at 0% incline

Need more workout inspiration? Find out how long you need to hold a plank to work your abs, the 5 exercises you should stop doing now — and what to do instead, and the best exercises to do if you sit down all-day. We'll also answer the question of whether running can give you abs.

Jane McGuire
Fitness editor

Jane McGuire is Tom's Guide's Fitness editor, which means she looks after everything fitness related - from running gear to yoga mats. An avid runner, Jane has tested and reviewed fitness products for the past five years, so knows what to look for when finding a good running watch or a pair of shorts with pockets big enough for your smartphone. When she's not pounding the pavements, you'll find Jane striding round the Surrey Hills, taking far too many photos of her puppy. 

Read more
Man running on a treadmill at home
Best treadmills for indoor running and walking workouts 2025
Woman cycling indoors on an exercise bike
Two indoor cycling experts share their favorite indoor exercise bike workouts for beginners
a photo of a woman doing an indoor workout
Forget the treadmill — boost your metabolism and chalk up 5,000 steps in 30 minutes with this indoor walking workout
Woman working while walking on an under-desk treadmill
Best walking pads 2025: The best under-desk treadmills tested and rated
a photo of a woman doing a bear crawl exercise
Skip the treadmill — try this 5-move bodyweight workout to build endurance and boost your metabolism instead
Woman using a workout app and syncing it with her watch
We've tested the best workout apps 2025 to help you train at home
Latest in Running
Adidas Adizero Adios Pro 4
I ran 40 miles in the Adidas Adizero Adios Pro 4 — here’s my verdict
a photo of the Nike Vomero 18 running shoe
Nike Vomero 18 review
Asics Gel-Cumulus 27
I ran 35 miles in the Asics Gel-Cumulus 27 — here’s my verdict
Asics Metafuji Trail
I ran 35 miles in the Asics Metafuji Trail and it’s one of the fastest trail shoes I’ve tested
Ublives black compression boots with control pad
I used compression boots while marathon training to see if they really work — here’s what I found
Saucony Endorphin Trainer
I ran 35 miles in the Saucony Endorphin Trainer — here’s my verdict
Latest in How To
An image of an iPhone screen showing the Safari app icon in the center
I got tired of Safari revealing my web searches in iOS 18.4 — this setting fixes that
Gmail logo on iPhone
I used Google Gemini to declutter my Gmail account — here's how you can do it too
AirPods Pro 2 in hand
Your earbuds are disgusting — here's the right way to clean them
ChatGPT logo on a smartphone screen being held outside
7 biggest ChatGPT mistakes — and how to fix them
a photo of a woman looking at her fitness tracker
Forget the treadmill — I boosted my metabolism and walked 2,000 steps with this 15-minute workout
a photo of a woman out for a walk
Forget running — I did this one thing to boost the calorie burn on my daily walks