Learn how to calculate buoyancy. Find how to calculate how to make objects neutrally buoyant, positively buoyant and negatively buoyant and the correct formula to use in calculating buoyancy.
Constants Used
METRIC
- 1 litre of salt water weighs 1.03 kilograms
- 1 litre of fresh water weighs 1 kilogram
- Pressure increases by 1 atm every 10 metres of salt water
- Pressure increases by 1 atm every 10.3 metres of fresh water Pressure changes per unit of salt water = 0.100 atm/m
- Pressure changes per unit of fresh water = 0.097 atm/m
IMPERIAL
- 1 cubic foot of salt water weighs 64 pounds
- 1 cubic foot of fresh water weighs 62.4 pounds
- Pressure increases by 1 atm every 33 feet of salt water
- Pressure increases by 1 atm every 34 feet of fresh water
- Pressure changes per unit of salt water = 0.445 psi/ft or 0.0303 atm/ft
- Pressure changes per unit of fresh water = 0.432 psi/ft or 0.0294 atm/ft
Thanks to Easy Dive Theory for making this video