What is the formula for fluid weight mass?

[Ghost259]

Does anyone know how to figure in fluid weight? for example a tank has a mass of 1, fill the tank up, you add weight, but how do you get the exact weight of a filled tank?

It would also be interesting to know if the weight of water, is more or less then the weight of diesel, or jet fuel?

Thanks for the help

[Unit 744]

"This means that if each tank holds 15.62 liquid per cube, then a full cube of liquid weighs 1.56 units of mass."

https://www.reddit.com/r/Stormworks/comments/b0586b/i_know_how_much_fuel_weighs/

[Ghost259]

Thank you Unit744

[Thales]

1000 liters or 1 m^3 water (or any fluid in Stormworks) is 100 mass.
1 mass becomes 10 kg if water is used as basis.

[dergerch]

is that true? Some say that different fluids have different density (and therefore different mass/m³).

[Siegfried67]

1 cube = 0.25 x 0.25 x 0.25 m = 15.625 L
1 cube of water should weight 15.625 kg

Since 1 regular block sinks, it's density is greater than 1, and it's mass over 15.625 kg. Ingame description states 1 block = 1 mass.

3 possibilities :

1 mass > 15.625 kg
or
ingame water is less dense than irl water
or
buoyancy physics is broken.

To get the best approximation of water (and other fluids) density, only way i can think of right now would be building different cubes of different sizes and see wich one is closest to neutral buoyancy. Then divide the mass by the volume to get density.

Or if you want to get fancy, a long cylinder weighted on one end. Count the number of cubes underwater and calculate the immersed volume exactlly. Knowing the total mass of the cylinder, you'll be able to calculate the water density (mass/cube). But it will only work if the ingame buoyancy works like it does irl.

[Unit 744]

Originally posted by Siegfried67:

Since 1 regular block sinks, it's density is greater than 1, and it's mass over 15.625 kg. Ingame description states 1 block = 1 mass.

Correction: A standard 1x1x1 building block of mass 1 actually floats.

Source: Tested in-game.

[Siegfried67]

Had to launch the game to test that... indeed it floats, forget everything i said ^^ Pretty sure it didn't.

The cylinder method to calculate the density of water is still valid, but you'll need to add a weighted block at the bottom.