Calorie data · Protein← All foods

How many calories in
octopus?

Octopus comes in around 82 calories per 100g, with 15g of protein and 1g of fat. The protein-to-calorie ratio is excellent — most of the calories are protein, not fat. Cooks fast and works in any preparation.

82
kcal · 100g
15g
Protein
2.2g
Carbs
1g
Fat
Servings

Common serving sizes.

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

Serving
Calories
Protein
3 oz (85g)
70 kcal
12.8g
4 oz (113g)
93 kcal
17.0g
1 cup (~150g)
123 kcal
22.5g
In your day

What 82 calories means.

Protein-dense — 18.3 g of protein per 100 kcal makes octopus an efficient choice for hitting a protein target while managing calories.

Share of a 2,000-kcal day
4%
per 100g · 18.3g protein per 100 kcal
Time to burn it off
🚶 Walking16 min
🏃 Running8 min
🚴 Cycling9 min
Estimated for a 70 kg / 154 lb adult
Comparison

Octopus vs. similar foods.

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

Food
Calories
Protein / 100 kcal
Octopus
82 kcal / 100g
18.3g
82 kcal / 100g
22g
82 kcal / 100g
20.7g
81 kcal / 100g
11.1g
Track this food

Skip the lookup. Snap the plate.

Point your iPhone camera at octopus and Spotwell's AI estimates the portion and macros in a few seconds. Check it, adjust anything that looks off, and log it.

Download on theApp Store
FAQ

Quick answers.

How many calories in octopus?

Octopus has approximately 82 calories per 100g. A typical serving — 3 oz (85g) — comes in at 70 calories.

How much protein is in octopus?

15g of protein per 100g. That puts octopus at roughly 18.3g of protein per 100 calories — a useful lens when comparing to other protein sources.

How do I log octopus 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 a few seconds. Adjust the value if it looks off.

Is octopus good for weight loss?

It depends on your overall calorie target. Octopus is naturally low-calorie at 82 kcal per 100g, so it's easy to fit into a deficit.