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Weighting

Salt and Fresh Water

Your lead in salt water, and what it will be in fresh (and the other way round).

Metric shows depths in metres and pressures in bar; Imperial in feet and atm. Your choice is kept across every formula for this visit.
Recreational limits mixes to 21–40% oxygen (nitrox). Technical allows any oxygen percentage up to 100% and trimix (helium). Granular lets you type exact values, to a decimal place. Your choice is kept across every formula for this visit.
Fresh water is less dense than salt water, so the same pressure is reached a little deeper (10.3 m per bar, against 10 m in salt water).
Your weight and lead
You, your kit and your lead together, as you get into the water. The change depends on all of it, not on the lead alone.
The lead that makes you neutral now, in the water chosen at the top of the page.

I think this is an error

This sends the calculation on this screen, exactly as it is now.