[remotemass (OP)]

Displace one millimeter (lower) of water from the ocean at sea level.
Is that 360 thousand cubic meters?

I was not expecting this number. Can someone please double check it for me please?

- remotemass

[alancalverd]

Take 75% of the earth's surface area (look it up!) in square meters and divide by 1000.

[Deecart]

Look very few...
So i checked.

The surface of sea is around 354 millions of km2, so 354 * *  *   

354

Dividing by 1000 like alancalverd said :

354

[Origin]

Is that 360 thousand cubic meters?
I was not expecting this number. Can someone please double check it for me please?

So just to be clear your number is wrong and the correct answer is about 360 billion cubic meters.