How Many Calories Do 100 Bicep Curls Burn? | Rep Facts

Calories Burned Doing 100 Biceps Curls — Practical Range

Energy burn scales with body weight, tempo, rest between sets, and how hard you go. The easiest way to make sense of it is to use METs (metabolic equivalents) and a simple equation. The CDC’s intensity guide classifies moderate work around 3–5.9 METs and vigorous work at 6 METs or more, while the Adult Compendium lists resistance training at roughly 3.5 METs for general sessions and about 6 METs for power-style lifting.

Most lifters finish 100 curls in 7–16 minutes, depending on cadence and rests. With typical loads and a steady pace, a 55–85 kg adult lands in the ballpark below. It’s a range, not a single figure, since time under tension and breaks shift the average intensity.

Estimated Calories For 100 Curls (By Body Weight & Session Shape)

Body Weight	Fast 100 Reps (≈7 min)	Standard 100 Reps (≈11 min)
55 kg	~20 kcal	~27 kcal
70 kg	~26 kcal	~34 kcal
85 kg	~31 kcal	~41 kcal

What Drives These Numbers

Body weight. The formula multiplies intensity by your mass, so two people moving the same way will not burn the same amount.

Intensity. General weight-room work sits near 3–3.5 METs, while higher-effort sets trend closer to 6 METs. Those values come from the Adult Compendium, which is the standard reference for activity costs.

Time on task. Tempo and rests dictate how many minutes your 100 curls actually take. A 2-0-2 cadence (about four seconds per rep) is quick; slower negatives or pauses push the clock. ACE notes a typical range of one to three seconds up and two to four seconds down per rep.

How To Estimate Your Own Calories For 100 Curls

Step 1: Pick A MET That Fits Your Set

Use ~3.0–3.5 for a normal curl session and ~6.0 for a high-strain effort. These figures map to “resistance training, multiple exercises” and “power lifting / body building, vigorous” in the Compendium.

Step 2: Time Your 100 Reps

Count only the minutes you spend on the set plus the rests that are part of that same 100-rep block. A 2-0-2 cadence yields about 6–7 minutes of moving time. Add any planned breaks between sets.

Step 3: Do The Equation

Calories = MET × 3.5 × body weight (kg) ÷ 200 × minutes

Worked example (70 kg, moderate session): MET 3.0 × 3.5 × 70 ÷ 200 × 10 minutes ≈ 36.8 kcal. If you slow the tempo or add sets, minutes climb and so does the total. If you push heavier with long rests, average MET rises during the work, but rests pull the session average down a bit.

Tempo, Rest And Load: What Changes The Burn

Tempo Sets The Clock

ACE teaches a simple cadence range: about one to three seconds on the way up and two to four seconds on the way down. That makes four to seven seconds per rep common. Across 100 reps, that’s roughly 7–12 minutes of active time; more if you add pauses.

Rest Changes The Average

Rests are low-MET time. Imagine 6.7 minutes of lifting at ~6 METs with nine extra minutes sitting at ~1 MET. Blended together, the session averages near 3 METs, not 6, even though the work sets felt tough. That’s why long breaks can keep the total in the same range as faster, lighter blocks.

Load Shifts METs

Heavier curls increase oxygen cost during each rep. Compendium values put vigorous lifting near ~6 METs, which lines up with lab findings showing isolated resistance moves commonly land around 3–10 kcal per minute, depending on setup and load.

Pick A Tempo For 100 Reps

The table below turns a few common tempo codes into active minutes. Your exact time will vary a bit from these round numbers, but it’s close enough to plan sets.

Tempo Codes → Active Minutes For 100 Curls

Tempo Code	Seconds / Rep	Active Minutes (100 Reps)
2-0-2	≈4 s	≈6.7 min
2-1-2	≈5 s	≈8.3 min
3-0-3	≈6 s	≈10.0 min

Bicep Curls Vs Bigger Movements

Curls train a small area, so the energy outlay stays modest. Full-body lifts or steady cardio sessions burn more per minute. As a reference point, Harvard’s chart lists “weight lifting: vigorous” for a 155-lb person around 216 calories per 30 minutes. That’s a different session shape than a curl-only block, but it shows how multi-joint work and short rests push the total.

When You Want A Higher Burn From Arm Day

Pair Curls With Rows Or Pull-Ups

Alternate pushing and pulling so one area rests while the other works. You’ll keep the clock moving and raise the session average without crazy jumps in load.

Trim Dead Time

Use a timer for set breaks. A steady 45–60 seconds between sets keeps your average up while leaving enough recovery to keep form tight.

Mind The Rep Quality

Use a full range and controlled lowering. A smooth negative not only trains the muscle well but also adds time under tension that the math will catch as more minutes.

Why METs Are Useful For This Question

METs give you a simple way to compare tasks and plug your weight into a repeatable equation. The Adult Compendium defines the values and the standard MET→kcal conversion converts them into session totals. The CDC’s page helps you gauge whether your set lived in a moderate or vigorous zone, which then points you to the right MET for the math.

Common Scenarios For 100 Curls

Quick Pump, Light Dumbbells

One long set at a brisk cadence. Expect ~7 minutes of motion, little to no rest, and a total near the low end of the range for your weight.

Classic Sets, Steady Cadence

Four or five sets with 60-second breaks. Movement time still sits near seven minutes, but the added breaks push the block to about 11 minutes. The total climbs a few calories because the clock ran longer.

Heavier, Many Sets

Ten sets of ten with longer rests. The work sets feel tough and the single-rep cost is higher, but the extra sitting trims the average intensity. The final total lands in mid-range for most people, edging higher if the rests stay tight.

Bottom Line For Readers Who Like Numbers

Use your scale, your stopwatch, and the Compendium’s MET values to get a clean answer you can repeat next week. For most adults, 100 bicep curls lands roughly between 20 and 75 calories depending on body weight and how the set is built. If you want more calorie burn from arms day, string smart movements together and keep rests honest while staying strict with form.