Quick Answer: How Many Ounces Are in a Pint?
One pint does not always equal the same number of fluid ounces:
- 1 US liquid pint = 16 US fluid ounces = 473.176 mL
- 1 Imperial pint = 20 Imperial fluid ounces = 568.261 mL
A US pint is approximately 16.7% smaller than an Imperial pint.
For water bottles and tumblers, check which measurement system is being used. A bottle labeled 16 US fl oz has a nominal capacity equal to one US liquid pint. However, a typical 20 US fl oz bottle holds approximately 591 mL, so it is slightly larger than one 568 mL Imperial pint.
| Pint type | Fluid ounces | Metric equivalent | Common use |
|---|---|---|---|
| US liquid pint | 16 US fl oz | 473.176 mL | US beverages, recipes and drinkware |
| Imperial pint | 20 Imperial fl oz | 568.261 mL | UK beer, cider and milk |
| US dry pint | Dry-volume unit | 550.610 mL | Berries and other dry goods |
A US dry pint measures volume, not weight. It cannot be converted into weight ounces without knowing the density of the ingredient.
US Pint vs Imperial Pint: What Is the Difference?
The United States and the United Kingdom use different pint and fluid-ounce definitions.
A US liquid pint contains 16 US fluid ounces. An Imperial pint contains 20 Imperial fluid ounces. The fluid ounces themselves are also different:
- 1 US fluid ounce is approximately 29.574 mL.
- 1 Imperial fluid ounce is approximately 28.413 mL.
- 20 US fluid ounces equal approximately 591 mL.
- 20 Imperial fluid ounces equal approximately 568 mL.
This distinction matters when converting recipes, interpreting beverage sizes or developing drinkware for more than one market.
According to the National Institute of Standards and Technology, one US cup is approximately 240 mL for kitchen measurement guidance, while exact legal and technical conversions may use more precise values. UK businesses should also review current GOV.UK weights and measures guidance when preparing product labels.
Pint-to-Ounces Conversion Formulas
US liquid pints
US pints × 16 = US fluid ounces
Example:
2 US pints × 16 = 32 US fluid ounces
Imperial pints
Imperial pints × 20 = Imperial fluid ounces
Example:
2 Imperial pints × 20 = 40 Imperial fluid ounces
Fluid ounces to US pints
US fluid ounces ÷ 16 = US pints
Example:
24 US fl oz ÷ 16 = 1.5 US pints
Fluid ounces to Imperial pints
Imperial fluid ounces ÷ 20 = Imperial pints
Example:
40 Imperial fl oz ÷ 20 = 2 Imperial pints
Pint and Fluid-Ounce Conversion Chart
| Pints | US fluid ounces | Imperial fluid ounces |
|---|---|---|
| 0.25 pint | 4 US fl oz | 5 Imperial fl oz |
| 0.5 pint | 8 US fl oz | 10 Imperial fl oz |
| 1 pint | 16 US fl oz | 20 Imperial fl oz |
| 1.5 pints | 24 US fl oz | 30 Imperial fl oz |
| 2 pints | 32 US fl oz | 40 Imperial fl oz |
| 4 pints | 64 US fl oz | 80 Imperial fl oz |
Always identify the measurement system before using the table. US and Imperial fluid ounces are not interchangeable.
Fluid Ounces vs Ounces
A fluid ounce, abbreviated as fl oz, measures volume. It is used for water, coffee, milk, juice and drinkware capacity.
An ounce, abbreviated as oz, usually measures weight or mass. It is used for ingredients and solid products.
Therefore:
- 16 fluid ounces of water describes a volume.
- 16 ounces of flour describes a weight.
- A pint is a volume measurement, not a weight measurement.
The weight of one pint depends on the liquid or material being measured because different substances have different densities.
Is a 16 oz Water Bottle One Pint?
A bottle labeled 16 US fluid ounces has a nominal capacity equal to one US liquid pint:
16 US fl oz = 1 US pint = approximately 473 mL
However, nominal capacity and usable capacity may not always be identical. Bottle specifications can be affected by:
- Where the capacity is measured
- Space left below the lid
- Lid or straw displacement
- Bottle-body manufacturing tolerance
- Whether the stated capacity is filled to the rim or to a recommended fill line
B2B buyers should ask the supplier how capacity is measured and confirm it using a finished sample before printing capacity claims on packaging.
Is a 20 oz Bottle One Pint?
The answer depends on the unit system.
A 20 Imperial fluid ounce container equals one Imperial pint and holds approximately 568 mL.
A bottle sold as 20 oz in the US market normally means 20 US fluid ounces, which equals approximately 591 mL or 1.25 US pints.
Therefore, a standard 20 US fl oz water bottle is:
- Larger than one US pint
- Approximately 23 mL larger than one Imperial pint
- Not exactly equivalent to a UK pint
For international product specifications, write both the unit and metric capacity—for example, 20 US fl oz / 591 mL—instead of using “20 oz” alone.
Common Water Bottle Capacities in Pints
| Bottle capacity | Approximate metric capacity | US-pint equivalent | Common positioning |
|---|---|---|---|
| 12 US fl oz | 355 mL | 0.75 pint | Kids, compact bottles and events |
| 16 US fl oz | 473 mL | 1 pint | Office, school and corporate gifts |
| 20 US fl oz | 591 mL | 1.25 pints | Daily use, retail and commuting |
| 24 US fl oz | 710 mL | 1.5 pints | Gym, sports and everyday hydration |
| 32 US fl oz | 946 mL | 2 pints | Fitness, outdoor and desk use |
| 40 US fl oz | 1.18 L | 2.5 pints | Driving and large-capacity hydration |
| 64 US fl oz | 1.89 L | 4 pints | Camping, jobsites and water reserve |
These values are based on US fluid ounces because ounce-labeled drinkware sold in the US normally uses the US customary system.
What Bottle Capacity Should a Brand Choose?
For many brands, 20–24 oz is a practical core range because it balances drinking capacity, portability and packaging size. But no capacity is suitable for every market.
| Target market | Practical starting range | What buyers should verify |
|---|---|---|
| Kids and school | 12–18 oz | Filled weight, lid operation and drop resistance |
| Corporate gifts | 16–24 oz | Logo area, packaging and distribution cost |
| Daily retail | 20–24 oz | Portability, differentiation and retail price |
| Gym and sports | 24–32 oz | Drinking flow, grip and leak resistance |
| Driving and lifestyle | 32–40 oz | Cup-holder fit, handle and straw design |
| Outdoor and jobsite | 32–64 oz | Carrying strength, insulation and filled weight |
Capacity alone is not enough to select a product. Buyers should also compare bottle dimensions, lid structure, filled weight, individual-box size, carton quantity and shipping impact.
For a complete product-selection framework, read the Water Bottle Size Guide for Brands.
B2B Capacity Checklist Before Ordering Samples
Before confirming a custom water bottle, request the following information from the manufacturer:
- Nominal capacity in US fl oz and mL
- Capacity measurement method
- Bottle height and maximum body diameter
- Base diameter and cup-holder compatibility
- Empty and estimated filled weight
- Compatible lid and handle options
- Logo decoration area
- Individual packaging dimensions
- Master-carton quantity, size and gross weight
- Capacity and leakage inspection methods
Buyer tip
Do not approve packaging artwork using only a catalog capacity. Confirm the actual finished sample with the final lid, because the lid, straw and recommended fill line can affect usable capacity.
If you are comparing bottle models, TOPNOVO can provide specifications for capacity, dimensions, compatible lids, customization and packaging before sampling.
Planning a private-label bottle collection? Explore TOPNOVO’s custom stainless steel water bottle manufacturing options or request a physical sample to compare capacity, hand feel and lid performance.
Frequently Asked Questions
How many ounces are in one pint?
One US liquid pint contains 16 US fluid ounces. One Imperial pint contains 20 Imperial fluid ounces.
Is 16 oz the same as one pint?
Yes, 16 US fluid ounces equal one US liquid pint. This does not apply to the Imperial system.
Is 20 oz the same as one pint?
Twenty Imperial fluid ounces equal one Imperial pint. Twenty US fluid ounces equal 1.25 US pints or approximately 591 mL.
How many ounces are in half a pint?
Half a US pint contains 8 US fluid ounces. Half an Imperial pint contains 10 Imperial fluid ounces.
How many cups are in a pint?
One US liquid pint equals two US cups.
How many milliliters are in a pint?
One US liquid pint equals approximately 473.176 mL. One Imperial pint equals approximately 568.261 mL.
What water bottle size equals two US pints?
A 32 US fl oz water bottle equals two US liquid pints and holds approximately 946 mL.
Does a bottle’s stated capacity include the lid?
Capacity normally refers to the internal volume of the container, but measurement methods can differ. B2B buyers should confirm whether the capacity is measured to the rim, below the thread or to a recommended fill line.
Final Answer
One US liquid pint equals 16 US fluid ounces or approximately 473 mL. One Imperial pint equals 20 Imperial fluid ounces or approximately 568 mL.
For drinkware sold internationally, do not use “pint” or “oz” without identifying the measurement system. Include both fluid ounces and milliliters in the specification, then confirm the actual capacity with a finished sample before approving product labels and packaging.