Fluid Ounces to Pounds Converter
Convert between fluid ounces and pounds using material density with support for US and UK fluid ounces
Volume to Mass Conversion Calculator
Select Ingredient or Enter Custom Density
Volume to Mass
Select US or UK fluid ounces
Mass to Volume
Enter mass in pounds (lbs)
Conversion Formula
Volume to Mass
Where density (lbs/fl oz) = density (kg/m³) × 2.204623 ÷ 33814
Mass to Volume
Density conversion uses same formula as volume to mass
Current Density: 0.065199 lbs/US fl oz (Water)
Example Calculations
| Ingredient | Volume | Density | Mass |
|---|---|---|---|
| Water | 25 US fl oz | 1,000 kg/m³ | 1.63 lbs |
| Mercury | 15 US fl oz | 13,546 kg/m³ | 13.25 lbs |
| Olive Oil | 16 US fl oz | 915 kg/m³ | 1.19 lbs |
| Honey | 12 US fl oz | 1,420 kg/m³ | 2.31 lbs |
Step-by-Step Examples
Example 1: Water Volume to Mass
Problem: Convert 25 US fl oz of water to pounds
Step 1: Water density = 1000 kg/m³
Step 2: Convert density = 1000 × 2.204623 = 2204.623 lbs/m³
Step 3: Convert to lbs/fl oz = 2204.623 ÷ 33814 = 0.06520 lbs/fl oz
Step 4: Mass = 25 × 0.06520 = 1.63 lbs
Example 2: Water Mass to Volume
Problem: Convert 22 lbs of water to UK fl oz
Step 1: Water density = 1000 kg/m³
Step 2: Convert density = 1000 × 2.204623 = 2204.623 lbs/m³
Step 3: Convert to lbs/UK fl oz = 2204.623 ÷ 35195 = 0.06264 lbs/fl oz
Step 4: Volume = 22 ÷ 0.06264 = 351.2 UK fl oz
Unit Definitions
US Fluid Ounce
- • 1/16 of a US pint
- • 1/128 of a US gallon
- • Exactly 29.5735295625 mL
UK Fluid Ounce
- • 1/20 of an imperial pint
- • 1/160 of an imperial gallon
- • Exactly 28.4130625 mL
Avoirdupois Pound
- • Standard weight unit
- • Exactly 0.45359237 kg
- • 16 ounces (mass)
Common Densities
Why Density Matters
Volume and mass are different measurements
Same volume can have different masses
Density links volume to mass
Essential for cooking and chemistry
Temperature affects density
Understanding Fluid Ounces to Pounds Conversion
Mass, Volume, and Density Relationship
The relationship between mass, volume, and density is fundamental to this conversion. Density is the ratio of an object's mass to its volume, expressed as ρ = m/V. This relationship allows us to convert between volume (fluid ounces) and mass (pounds) when we know the material's density.
Conversion Process
- 1.Start with density in kg/m³
- 2.Convert to lbs/m³ (multiply by 2.204623)
- 3.Convert to lbs/fl oz (divide by volume conversion factor)
- 4.Multiply or divide as needed for conversion
US vs UK Fluid Ounces
Conversion Factors
- kg to lbs: 1 kg = 2.204623 lbs
- m³ to US fl oz: 1 m³ = 33,814 US fl oz
- m³ to UK fl oz: 1 m³ = 35,195 UK fl oz
Important: Always specify whether you're using US or UK fluid ounces, as the difference can significantly affect your results.