How Many Calories Do You Burn In Sit Ups? | Real-World Numbers

Calories Burned During Sit-Ups: The Simple Math

The fastest way to get a solid estimate is to use the standard MET formula many labs use: calories per minute = MET × 3.5 × body weight (kg) ÷ 200. One MET equals resting energy use, and higher METs mean higher output. The CDC page on intensity explains this scale in plain terms, and the Compendium lists MET values for common movements, including calisthenics like curl-ups, crunches, and sit-ups.

What MET Should You Pick For Sit-Ups?

The Compendium groups these core moves under calisthenics. It lists 2.8 MET for light work like curl-ups and planks, 3.8 MET for moderate calisthenics, and around 8.0 MET for vigorous body-weight circuits that include fast reps and minimal rest. That gives you a low-to-high range to plug into the math.

Quick Table: 10 Minutes Of Sit-Ups At Two Body Weights

Use this as a starting point. Numbers come from the MET formula with the Compendium values.

Effort	10 Min At 68 kg (150 lb)	10 Min At 91 kg (200 lb)
Light (2.8 MET)	~33 calories	~44 calories
Moderate (3.8 MET)	~45 calories	~61 calories
Vigorous (8.0 MET)	~95 calories	~128 calories

Fat loss still comes down to daily intake versus daily burn. Snacks make more sense once you know your daily calorie needs.

What Moves The Number Up Or Down

Pace And Time Under Tension

Faster sets raise METs, but only while form holds. A steady “two-seconds up, two-seconds down” tempo lands you in the moderate zone for many bodies. Speed work with short rests pushes you toward the higher end.

Range Of Motion

Small half-reps feel easy and drop energy use. Taller sit-ups and crisp control recruit more muscle and cost more calories over the same minute.

Set Design And Rest

Calorie burn is time-based. EMOMs (every-minute-on-the-minute), ladders, and circuits keep you moving and trim idle time, which bumps the per-minute average.

Body Weight And Core Strength

Heavier bodies burn more per minute at the same MET because the formula multiplies by kilograms. Stronger athletes move cleaner and can hold a higher pace without form drift, which also lifts the estimate.

Surface And Variations

Hard floors damp pace. A pad or mat helps you keep a rhythm. Anchored feet, decline benches, or loaded plates change the demand and push METs up toward circuit-style values.

Per Minute, Per Set, And Per 100 Reps

Here’s a practical way to translate minutes into reps. Pick a pace you can hold with clean reps. At 20 reps per minute, a 68 kg person at a moderate 3.8 MET pace lands near 4.5 calories per minute, or roughly 0.22 calories per rep. At 30 reps per minute, the same person hits ~4.5–9.5 calories per minute depending on effort, which shifts the per-rep number into a ~0.15–0.32 range. These figures come straight from the MET math and scale with body weight.

Reality Check From Large Tables

Broad activity charts line up with this range. Harvard’s table for common activities shows calisthenics climbing with effort and body weight over 30-minute windows, which mirrors the Compendium-based estimates.

Table: Pace Guide For A 68 kg (150 lb) Person

Use it to plan sets you can repeat without form breakdown.

Pace & Style	Est. Calories/Min	What It Looks Like
Slow Control (Light)	~3.3	12–18 smooth reps/min, full stops
Steady Tempo (Moderate)	~4.5	18–25 crisp reps/min, 1:1 work-rest
Fast Sets (Vigorous)	~7–10	25–35 reps/min, short rests or EMOM

How Sit-Ups Compare To Crunches And Planks

Crunches and planks usually sit in the lighter end of the Compendium. Crunch-style work and planks are listed near 2.8 MET, while general calisthenics can hit 3.5–3.8 for a steady session. Full circuits with quick transitions reach 6–8+ MET. This is why a plank minute burns less than an equally long minute of fast sit-ups, and a dense circuit sits higher still.

Sample Mini Workouts With Estimated Burn

Ten-Minute Core Builder

Alternate 40 seconds of sit-ups and 20 seconds of rest for 10 rounds. A 68 kg person at a moderate 3.8 MET pace lands near 45 calories total. Bump pace or trim rest and the number climbs toward the vigorous range.

Fifteen-Minute Ab Circuit

Five rounds of 30 sit-ups, 30-second plank, and 30 flutter kicks. Keep transitions tight. With limited rest this behaves like body-weight circuit work and can approach 6–8 MET for trained folks, which yields ~85–140 calories for a 68 kg person over 15 minutes.

EMOM Ladder, 12 Minutes

Minute 1: 15 reps. Minute 2: 18 reps. Keep adding 3 reps each minute until you miss, then hold that cap. The moving clock trims idle time, which bumps the per-minute average.

Form Cues That Save Your Back

Set Your Start

Lie on a mat, knees bent, feet planted. Cross your arms on your chest. Brace your midline before each rep.

Keep The Curve Natural

Drive ribs toward hips without yanking your neck. Slow the first and last inch. A clean set does more for your midline than a sloppy sprint.

When To Swap The Move

Tight hips or a cranky lower back? Many lifters switch to curl-ups, dead bugs, hollow holds, or planks for a while. Effort stays honest and the session still counts toward your daily activity.

Build A Week That Actually Works

Core work shines when it rides along with steps, protein, and smart sleep. Keep a short daily slot for trunk work, add a couple of longer sessions on training days, and treat sit-ups as just one tool. If fat loss is the goal, align intake with your output. A clear read on your daily calorie needs plus a small calorie gap beats guessing.

Worked Examples You Can Copy

Case A: 68 kg (150 lb), Moderate Pace

Thirty total minutes across the day (three 10-minute blocks) at 3.8 MET comes out near 135 calories. That’s the same math as the first table, just stacked into a daily plan.

Case B: 91 kg (200 lb), Mixed Pace

Ten minutes slow control (~44 calories) plus ten minutes of steady tempo (~61 calories) plus a short five-minute finisher at a higher pace (~48 calories) lands near 150 calories for 25 minutes of work. Numbers scale with how tightly you run the clock.

Where These Numbers Come From

The estimates here rest on two parts: a definition for intensity and a table of MET values. Intensity uses the MET scale; one MET is rest, higher METs mean more oxygen use and more energy per minute. The CDC explains this scale and how moderate and vigorous activity feel in the real world. The Compendium tracks METs for a long list of activities and updates codes over time; the current tracking guide lists 2.8 for light ab work, 3.5–3.8 for general to moderate calisthenics, and 6–8+ for dense circuits.

You can also cross-check with broad burn tables from university-affiliated sources. Harvard Health’s page lists 30-minute calorie totals across activities and body weights, which align with the MET-based ranges. Use it as a sanity check when you plan longer blocks.

Bottom Line For Training

Use sit-ups for a crisp core and a tidy calorie add-on. Pick a pace you can hold, keep rests short, and stack minutes across the week. Want a step-by-step plan? Try our calorie deficit guide.