How Many Calories Does Sex Burn?

Ever wondered if a night of passion counts as a workout? The short answer is yes—sex burns calories, but the exact number depends on a few basics. Most people think it’s a huge calorie‑killer, but the truth is a bit more nuanced. Let’s break down the main factors and see how it compares to other activities.

Factors that Affect the Calorie Burn

First off, intensity matters. Light, relaxed lovemaking will burn fewer calories than a high‑energy session that involves a lot of movement, change of positions, and even some cardio‑style actions. A study that tracked heart rate during different sexual activities found that moderate intensity can burn around 3–4 calories per minute, while vigorous sessions can push that up to 5–6 calories per minute.

Weight and age are the next big pieces of the puzzle. Heavier people use more energy to move, so they’ll burn more calories doing the same thing as someone lighter. Likewise, younger bodies tend to be more efficient at turning effort into heat, which means a 25‑year‑old might burn a few extra calories compared with a 45‑year‑old doing the same moves.

Duration is the simplest factor: the longer you go, the more calories you’ll use. A ten‑minute session at moderate intensity can burn roughly 30‑40 calories, while a 30‑minute marathon can top 200 calories. Keep in mind that most people don’t stay at the same intensity the whole time—there are usually peaks and valleys.

How It Stacks Up Against Common Workouts

For perspective, a 30‑minute brisk walk (about 4 mph) burns roughly 150‑200 calories for an average adult. A 30‑minute jog can torch 300‑400 calories. So, unless your bedroom routine is as intense as a HIIT class, sex generally burns fewer calories than a solid cardio workout.

That said, sex has other perks: it boosts mood, releases endorphins, and can improve sleep. Those benefits can indirectly support weight goals by reducing stress eating and improving recovery. If you’re looking for a fun way to add a little extra burn to your day, an enthusiastic session can definitely chip away at your daily calorie budget.

To get the most out of a bedroom workout, try to keep the heart rate elevated: incorporate positions that require lifting, dancing, or moving around the room. Even a short, high‑energy burst can match the calorie burn of a quick jog.

Bottom line: sex burns calories, but it’s not a replacement for regular exercise. Think of it as a bonus calorie‑burner that also brings intimacy and fun into the mix. So enjoy the moment, move a bit more if you can, and let the added burn be a happy side effect.