The notation 1.23E + 4 stands for 1.23 x 10⁺⁴ = 0.000123.

from \ to	= __ feet3	= __ gallons	= __ inches3	= __ liters	= __ meters3	= __ miles3	= __ pints	= __ quarts	= __ yards3
foot3		7.480519...	1728	28.31684...	0.02831684...	6.793572E - 12	59.84415...	29.92207...	(1/27)
gallon	0.1336805...		231	3.785411...	0.003785411...	9.081685...E - 13	8	4	0.004951131...
inch3	(1/1728)	(1/231)		0.01638706...	1.638706...E - 5	3.931465...E - 15	(1/28.875)	(1/57.75)	(1/46656)
liter	0.03531466...	0.2641720...	61.02374...		(1/1000)	2.399127...E - 13	2.113376...	1.056688...	0.001307950...
meter3	35.31466...	264.1720...	61023.74...	1000		2.399127...E - 10	2113.376...	1056.688...	1.307950...
mile3	1.471979...E + 11	1.101117...E + 12	2.543580E + 14	4.168181...E + 12	4.168181...E + 9		8.808937...E + 12	4.404468...E + 12	5.451776...E + 9
pint	0.01671006...	(1/8)	28.875	0.4731764...	4.731764...E - 4	1.135210...E - 13		(1/2)	6.188914...E - 4
quart	0.03342013...	(1/4)	57.75	1.056688...	9.463529...E - 4	2.270421...E - 13	2		0.001237782...
yard3	27	0.004951131...	46656	0.001307950...	0.7645548...	1.834264...E - 10	1615.792...	807.8961...

To use: find the unit to convert from in the left column, and multiply it by the expression under the unit to convert to.
Examples: foot³ = 1728 inches³; 2 feet³ = 2x1728 inches².

Useful Exact Volume Relationships

fluid ounce = (1/8) cup = (1/16) pint = (1/32) quart = (1/128) gallon
gallon = 128 fluid ounces = 231 inches³ = 8 pints = 4 quarts
quart = 32 fluid ounces = 4 cups = 2 pints = (1/4) gallon

cup = 8 fluid ounces = (1/2) pint = (1/4) quart = (1/16) gallon
mile = 63360 inches = 5280 feet = 1760 yards
yard = 36 inches = 3 feet = (1/1760) mile
foot = 12 inches = (1/3) yard = (1/5280) mile
pint = 16 fluid ounces = (1/2) quart = (1/8) gallon
inch = 2.54 centimeters = (1/12) foot = (1/36) yard
liter = 1000 centimeters³ = 1 decimeter³ = (1/1000) meter³