Quick Find Conversion

Imperial fluid ounces

fluid ounce (abbreviated fl ozfl. oz. or oz. fl., old forms ℥, fl ℥, f℥, ƒ ℥) is a unit of volume (also called capacity) typically used for measuring liquids. Various definitions have been used throughout history, but only two are still in common use: the British Imperial and the United States customary fluid ounce. An imperial fluid ounce is  120 of an imperial pint,  1160 of an imperial gallon or approximately 28.4 ml. A US fluid ounce is  116 of a US fluid pint and  1128 of a US liquid gallon or approximately 29.57 ml, making it about 4% larger than the imperial fluid ounce.

Imperial fluid ounce

1 imperial fluid ounce 1160imperial gallon
 140imperial quart
 120imperial pint
 15imperial gill
 8imperial fluid drams
 28.4130625millilitres
 ≈ 1.733871455cubic inches
 ≈ 0.960759940US fluid ounces
 ≈ the volume of 1 avoirdupois ounce of water

Conversion table

US legal cuppipedrop (imperial)ponyimperial minimfluid scruplepetaliterhectoliter
1 0.0005032 2,432.6839108 10.8204873 4,054.4731847 202.7236592 2.4 × 10-16 0.0024
1,987.3411866 1 4,834,572.929895 21 504 8,057,621.5498223 402,881.0774932 4.76961884784 × 10-13 4.7696188
0.0004111 2.0684350293206 × 10-7 1 0.0044480 1.6666667 0.0833333 9.86564670138 × 10-20 9.86564670138 × 10-7
0.0924173 4.6502976190476 × 10-5 224.8220299 1 374.7033831 18.7351692 2.2180147171875 × 10-17 0.0002218
0.0002466 1.2410610175928 × 10-7 0.6000000 0.0026688 1 0.0500000 5.91938802083 × 10-20 5.91938802083 × 10-7
0.0049328 2.482122035173 × 10-6 12.0000000 0.0533756 20.0000000 1 1.18387760416 × 10-18 1.18387760416 × 10-5
4.1666666666667 × 1015 2 096 603 590 144 1.0136182961631 × 1019 4.5085363602457 × 1016 1.6893638269379 × 1019 8.4468191347325 × 1017 1 10 000 000 000 000
416.6666667 0.2096604 1,013,618.2961631 4,508.5363602 1,689,363.8269379 84,468.1913473 1.0 × 10-13 1