# How big is Ego the Living Planet in his comic form?

I am referring to his form in the comics, not the MCU version. I am referring to his maximum (largest) size. Which exoplanet or planet of our solar system is he comparable to in size at his largest?

• Ego has appeared in multiple forms over the course of more than 50 years in the comics, ranging from planetary size, down to microscopic spores; en.wikipedia.org/wiki/Ego_the_Living_Planet. You're going to need to be a lot more specific. May 7, 2022 at 6:28
• Ok, I’ll put it at his largest size then. I’ll edit it. May 7, 2022 at 7:51
• In the comics? A few square inches. May 7, 2022 at 11:58
• I meant in the universe depicted in said comics! May 7, 2022 at 11:59
• @LouisHolmes I think Ifurini was kidding May 7, 2022 at 16:06

According to the Official Handbook of the Marvel Universe A to Z #3, Ego has a diameter of 4165 miles in his "living planet" form.

That makes him slightly smaller than Mars, which has a diameter of 4220 miles.

DIAMETER: 4165 miles

MASS: Unrevealed

Official Handbook of the Marvel Universe A to Z #3 (July, 2008)

The following measurements aren't canon, but using the figure given for Ego's diameter, we can work out that he should have an approximate circumference of 13000 miles, an approximate surface area of 54 million square miles, and an approximate volume of 38 billion cubic miles, rounding to two significant figures in each instance.

π × 4165 = 13084.7334022

4 × π × (4165 ÷ 2)² = 54497914.6202

(4 ÷ 3) × π × (4165 ÷ 2)³ = 37830635732.2

• Volume 2. Deluxe Edition (1985) concurs, as does the Volume 3. Master Edition (1993) and the 2008 Official Handbook of the Marvel Universe A-Z May 7, 2022 at 16:20