burn off

use up energy or calories by exercising

B2

What does "burn sth off" mean?

To burn off calories or energy means to use them up through physical activity — exercise, sport, or even everyday movement. The idea is that your body consumes stored energy during activity, reducing fat or undoing the effect of a large meal. It's especially common in conversations about diet, fitness, and healthy living, and you'll hear it constantly in gyms, health articles, and casual chat. What makes it distinctive is the sense of deliberate effort — you actively work to get rid of excess calories or fat, rather than simply losing weight passively. It carries a practical, motivational tone, often appearing with intentions or plans: 'I'll burn it off later' or 'I need to burn off that pizza'.

Examples

How to use it

burn off + calories/fat/energy

The most common pattern — use the phrasal verb with a noun naming what is being used up through exercise.

He goes cycling every weekend to burn off extra calories.

burn + object + off

With short noun objects, separation is very natural and common — the object slots between the verb and the particle.

She ate a big brunch but planned to burn the calories off with a long walk.

burn + pronoun + off

Pronouns must always go between the verb and particle — never after 'off'.

I had a huge pasta dinner last night, but I burned it off at the gym this morning.

modal + burn off + object

Very naturally used with modal verbs like 'can', 'need to', or 'want to' to express ability or intention.

You can burn off a surprising amount of fat just by walking for 45 minutes a day.

be burned off (passive)

The passive is natural when the focus is on the calories or energy rather than the person exercising — common in health and fitness writing.

Most of the carbohydrates you eat are burned off during moderate aerobic exercise.

Common Collocations

caloriesfatenergya mealexcess weightcarbohydrates

Common Mistakes

Confusing 'burn off' with 'burn out'

'Burn off' means to use up calories or energy through exercise, while 'burn out' means to become completely exhausted from too much work or stress. These are entirely different phrasal verbs and cannot be swapped.

✗ I went for a jog to burn out the calories from lunch.
✓ I went for a jog to burn off the calories from lunch.
Pronoun placed after the particle

Because this phrasal verb is separable, pronouns like 'it' or 'them' must go between 'burn' and 'off', never after 'off'.

✗ I ate too much cake, but I'll burn off it later.
✓ I ate too much cake, but I'll burn it off later.
Using 'burn off' without a physical activity context

This sense of 'burn off' specifically refers to using up calories or energy through physical activity. If there's no connection to exercise or movement, the meaning may shift to a completely different sense involving literal fire or heat.

✗ She burned off her tiredness by sleeping for ten hours.
✓ She burned off her restless energy by going for an evening run.

Usage

This phrasal verb is neutral and very common in everyday English, especially in health and fitness contexts. It is equally common in British and American English.

Frequently Asked Questions

Can 'burn off' be used for things other than calories — like stress or sugar?

Yes, the range of objects is quite flexible. You can burn off fat, energy, carbohydrates, sugar, or even a specific meal ('burn off lunch'). Some speakers also use it more loosely to talk about burning off restless energy or tension, especially when physical activity is the method. Stress works too, as long as the context makes clear you mean exercising it away.

Does 'burn off' always mean the same thing?

No — 'burn off' has another meaning that's completely unrelated to fitness. It can also mean to remove or destroy something with fire or heat, such as burning off dead leaves or fog burning off in the sun. Context makes it easy to tell the difference: if someone is talking about exercise and food, it always means using up calories or energy.

Is 'burn off' used the same way in British and American English?

Yes, it's equally common and natural in both varieties. You'll find it in fitness content, health journalism, and everyday conversation on both sides of the Atlantic without any difference in meaning or frequency.

What's the difference between 'burn off' and 'work off' in a fitness context?

'Work off' is very close in meaning and can often be used in the same way — for example, 'work off the calories' or 'work off a big meal'. The main difference is that 'burn off' feels more specifically tied to calorie and fat expenditure, while 'work off' can also apply to non-fitness situations like working off a debt. In casual fitness talk, 'burn off' is the more frequent choice.

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