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 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 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 under a second. 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.