Calorie data · Vegetables← All foods

How many calories in
romaine lettuce?

Romaine Lettuce is 17 calories per 100g — very low for vegetables. Essentially free volume on any plate; barely registers in macro accounting.

17
kcal · 100g
1.2g
Protein
3.3g
Carbs
0.3g
Fat
Servings

Common serving sizes.

Calories scale with portion. Here's how a typical romaine lettuce serving translates in your tracker:

Serving
Calories
Protein
3 oz (85g)
14 kcal
1.0g
4 oz (113g)
19 kcal
1.3g
1 cup (~150g)
26 kcal
1.8g
In your day

What 17 calories means.

Very low calorie — at 17 kcal per 100g, romaine lettuce adds volume to a meal without meaningfully denting a calorie deficit.

Share of a 2,000-kcal day
1%
per 100g · 7.1g protein per 100 kcal
Time to burn it off
🚶 Walking3 min
🏃 Running2 min
🚴 Cycling2 min
Estimated for a 70 kg / 154 lb adult
Comparison

Romaine Lettuce vs. similar foods.

How romaine lettuce stacks up on calories and protein against foods people commonly compare it to:

Food
Calories
Protein / 100 kcal
Romaine Lettuce
17 kcal / 100g
7.1g
17 kcal / 100g
7.1g
17 kcal / 100g
7.6g
18 kcal / 100g
5g
Track this food

Skip the lookup. Snap the plate.

Point your iPhone camera at romaine lettuce and Spotwell's on-device AI estimates the portion and macros in under a second — no manual entry, no barcode hunting.

Download on theApp Store
FAQ

Quick answers.

How many calories in romaine lettuce?

Romaine Lettuce has approximately 17 calories per 100g. A typical serving — 3 oz (85g) — comes in at 14 calories.

How much protein is in romaine lettuce?

1.2g of protein per 100g. That puts romaine lettuce at roughly 7.1g of protein per 100 calories — a useful lens when comparing to other vegetables sources.

How do I log romaine lettuce accurately?

The simplest method: weigh it on a kitchen scale, then enter grams in your tracker. With Spotwell, you can skip the scale — point the camera at the plate and the AI estimates the portion in under a second. Adjust the value if it looks off.

Is romaine lettuce good for weight loss?

It depends on your overall calorie target. Romaine Lettuce is naturally low-calorie at 17 kcal per 100g, so it's easy to fit into a deficit.