At One Place

100 fl oz to cup

100 US fluid ounces in US cups
100 fl oz = 12.5 cup
cup = fl oz × 1/8

100 US fluid ounces is 12.5 US cups. To get there, multiply by 0.125.

Values either side

US fluid ounces near 100, converted to US cups.
US fluid ounces US cups
80 fl oz 10
85 fl oz 10.625
90 fl oz 11.25
95 fl oz 11.875
100 fl oz ← 12.5
110 fl oz 13.75
120 fl oz 15
125 fl oz 15.625
150 fl oz 18.75

How the conversion works

The relationship is cup = fl oz × 1/8. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

US cup: US legal cup is 240 mL; the customary cup used here is 236.588 mL.

Common questions

What is 100 fl oz in US cups?
100 fl oz is 12.5 cup.
How do you convert US fluid ounces to US cups?
Multiply by 0.125.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked