1 liter (or 1000 cubic centimeters) at 0°C weighs 1.9774 grammes. 1 gramme at 0°C fills 505.7 cubic centimeters. 1 cubic inch weighs 0.0355 grammes or 0.57 grains.

In practice 1 liter (1000 cubic centimeters) is estimated to weigh 1.66 grammes at 10 to 15°C. 1 volume of water at 0°C absorbs, at the usual atmospheric pressure, 1.7967 volumes of carbonic acid. At 15°C an equal volume. At 20°C but 0.900 volume.