How Much Cardio Per Week?

For general health, do at least 150 to 300 minutes of moderate-intensity aerobic activity per week, or 75 to 150 minutes of vigorous activity, plus muscle-strengthening work on two or more days. That is 30 minutes of brisk cardio five days a week at the minimum, scaling up to about an hour a day for extra benefit. Those numbers come straight from the World Health Organization and the U.S. government, and they are the anchor every credible cardio recommendation is built on. Below is where the numbers come from, how to adjust them for weight loss versus heart health, whether you can overdo it, and a simple weekly template.

The Baseline Recommendation

The World Health Organization's 2020 guidelines and the U.S. Physical Activity Guidelines for Americans (2nd edition) agree on the same target for adults: 150 to 300 minutes of moderate-intensity aerobic activity each week, or 75 to 150 minutes of vigorous-intensity activity, or an equivalent mix. On top of that, both call for muscle-strengthening activity on two or more days a week. The two intensities trade off roughly two-to-one — one minute of vigorous activity counts about the same as two minutes of moderate activity.

"Moderate" means you can talk but not sing — brisk walking, easy cycling, or recreational swimming. "Vigorous" means you can only get a few words out between breaths, like running or a hard cycling effort. If you want to pin these to real numbers rather than a talk test, the heart rate zones calculator maps each intensity to a target heart-rate band, and our guide to Zone 2 cardio covers the steady, conversational pace that makes up most of a sustainable weekly load.

Cardio Targets by Goal

The weekly minimum is a floor for health, not a prescription for every goal. Here is how the target shifts depending on what you are training for.

Ranges are practical targets for healthy adults, not medical advice. Beginners should ramp up gradually — adding about 10 percent per week — rather than jumping straight to the top of a range.

Why These Numbers — The Mortality Evidence

The guideline ranges are not arbitrary; they track a clear dose-response curve for health. A 2019 harmonized meta-analysis of accelerometer-measured activity (Ekelund and colleagues, BMJ, PMID 31434697) pooled more than 36,000 adults and found that any amount of physical activity beat none, with the steepest drop in mortality risk occurring as sedentary people became lightly and moderately active. The benefit keeps accruing up to about 300 minutes a week, then flattens — which is exactly why the guidelines cap the "recommended" band there rather than pushing higher.

Cardio also does not have to be aerobic-only to pay off. A 2022 meta-analysis (Momma and colleagues, British Journal of Sports Medicine, PMID 35228201) found that muscle-strengthening activity was independently associated with a 10 to 17 percent lower risk of all-cause mortality, cardiovascular disease, and cancer — and that combining strength work with aerobic activity produced a larger reduction than either alone. That is the evidence behind the "plus two strength days" half of the recommendation, and a reason not to treat cardio as the whole picture.

Can You Do Too Much?

For the vast majority of people, the practical problem is doing too little, not too much. But the ceiling is real. The Copenhagen City Heart Study (Schnohr and colleagues, 2015, Journal of the American College of Cardiology, PMID 25660917) followed joggers for over a decade and found a U-shaped curve: light and moderate joggers had the lowest mortality, while the small group of strenuous, high-volume joggers lost the survival advantage and looked more like sedentary non-joggers. The takeaway is not that hard training is dangerous, but that the health returns plateau, and piling on extreme volume brings diminishing returns plus real injury and recovery costs.

In everyday terms, "too much" usually shows up as overuse injury, disrupted sleep, an elevated resting heart rate, or stalled progress from under-recovery — not as an exceeded step count. If your cardio is eating into the recovery you need for strength work or life, that is the signal to pull back, not a number on a watch.

A Simple Weekly Template

A balanced week that hits the guidelines without burning you out might look like three to four aerobic sessions plus two strength days:

That adds up to roughly 170 to 180 minutes of aerobic activity plus two strength days — comfortably inside the recommended band with room to grow. To see how your sessions translate into calories, run the numbers through the calories-burned calculator, and if step-based movement is your preferred cardio, the daily steps calculator and our guide to how many steps a day to lose weight convert your walking into a weekly target.

The Bottom Line

Anchor on 150 minutes of moderate cardio a week as your floor and 300 minutes as your target, add two days of strength training, and adjust upward for weight loss or endurance goals. The health returns are steepest when you go from doing nothing to doing something, keep climbing to about five hours a week, and then level off — so consistency matters far more than chasing extreme volume. Build the habit at a pace you can hold, and let the minutes accumulate.

Fitness planning runs alongside the rest of life, and the same steady, compounding approach that builds an aerobic base also builds financial health — some readers pair their training plan with the budgeting and paycheck tools over at pay.thicket.sh.