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40 Fluid Ounces to Quarts

40 fluid ounces is 1.25 quarts. See the step-by-step breakdown and reference table below, or try a different value in the calculator.

40 fl oz = 1.25 qt
fl oz ÷ 32 = qt
Try: 35 fl oz to qt 39 fl oz to qt 41 fl oz to qt 45 fl oz to qt
40 fl oz is also
40 fl oz = 1.18 L 40 fl oz = 0.3125 gal 40 fl oz = 1,182.94 mL 40 fl oz = 5 cup 40 fl oz = 2.5 pt 40 fl oz = 80 tbsp 40 fl oz = 240 tsp
fl oz
1.25 qt

Step-by-Step Calculation

fl oz ÷ 32 = qt
  1. Start with 40 fl oz
  2. Divide by 32: 40 ÷ 32 = 1.25
  3. Result: 40 fl oz = 1.25 qt

This conversion factor (0.03125) is the same for every fluid ounce to quart calculation.

Fluid Ounce to Quart Conversion Table

Fluid Ounces (fl oz) Quarts (qt)
1 fl oz 0.0313 qt
2 fl oz 0.0625 qt
5 fl oz 0.1563 qt
10 fl oz 0.3125 qt
15 fl oz 0.4688 qt
20 fl oz 0.625 qt
25 fl oz 0.7813 qt
40 fl oz 1.25 qt
50 fl oz 1.56 qt
75 fl oz 2.34 qt
100 fl oz 3.13 qt
250 fl oz 7.81 qt
500 fl oz 15.63 qt
1,000 fl oz 31.25 qt
calculate Fluid Ounce to Quart Converter swap_horiz Quart to Fluid Ounce Converter functions Fluid Ounce to Quart Formula water_drop All Volume / Capacity Conversions

Frequently Asked Questions

40 fluid ounces equals 1.25 quarts.
The formula is: fl oz ÷ 32 = qt. See the fl oz to qt formula page for worked examples.
Use the quarts to fluid ounces converter. The reverse formula is: qt × 32 = fl oz.
The calculator uses the full-precision conversion factor for accuracy. Table values and displayed results are rounded for readability.
The conversion formula (fl oz ÷ 32 = qt) is based on internationally defined standards. Displayed results are rounded for readability, while the calculator uses the full-precision factor.
person Written by Sean Day verified Reviewed by UnitCompare update Last updated Mar 28, 2026