101mL
3.4 oz to mL
3.4 US fl oz = 100.55 mL
That is the carry-on liquids limit: 3.4 oz in the US is the same rule as 100 mL elsewhere.
If it is a UK fluid ounce: 3.4 UK fl oz = 96.6 mL.
Tip: you can type “8 oz flour” or “500 ml to oz”.
3.4 US fluid ounces =
Try:
≈ the TSA 3.4 fl oz / 100 mL limit
Reading this as US fluid ounces.
Did you mean:
For:
Details
Weighs about 101 g as
All units
- mL
- 101
- L
- 0.101
- US cup
- 0.425
- US tbsp
- 6.8
- US tsp
- 20.4
- US pint
- 0.213
- US qt
- 0.106
- US gal
- 0.0266
How we got this
3.4 US fluid ounces × 29.5735295625 mL/fl oz = 100.550001 mL
1 US fl oz = 29.5735295625 mL (NIST). 1 UK fl oz = 28.4130625 mL (UK Weights and Measures Act 1985).
Density used: water, 1 g/mL. By definition close to 1 g/mL at room temperature. Source: NIST.
Also useful:
Nearby amounts
| Amount | US fl oz to mL | UK fl oz to mL |
|---|---|---|
| 1.7 | 50.28 | 48.3 |
| 2 | 59.15 | 56.83 |
| 3 | 88.72 | 85.24 |
| 3.4 | 100.6 | 96.6 |
| 4 | 118.3 | 113.7 |
| 5 | 147.9 | 142.1 |
The other way
100.55 mL = 3.4 US fl oz = 3.54 UK fl oz. Open it in the full converter to switch units or ingredients.
What it looks like
- About one 100 mL travel bottle
- About 2.01 × 1.7 fl oz / 50 mL perfume bottle
- About 0.425 × US cup
Worth knowing
3.4 fl oz is 100.55 mL, a hair over 100. The limit was set at 100 mL and the US writes it as 3.4 oz, so a container printed with either figure is accepted. What counts is the capacity printed on the container, not how much liquid is inside. Check your airport if you are close.
That catches people out with big bottles that are nearly empty. A 5 oz bottle with 1 oz left is still a 5 oz container. Travel-size products come in sizes like 3 oz, 2 oz and 1 oz, which all fit under the limit. A UK fluid ounce is smaller, so 3.4 UK fl oz is only 96.6 mL. The limit is in mL, so the printed mL figure settles it.
Questions
Is 3.4 oz the same as 100 mL?
Close enough that the rules treat them as the same. 3.4 US fl oz is 100.55 mL, and 100 mL is 3.38 US fl oz.
Does a 3.4 oz bottle pass if it is half empty?
Yes. A 3.4 oz container passes whatever is inside it. The reverse is not true: a 6 oz bottle with 2 oz left does not pass.
How many tablespoons is 3.4 oz?
About 6.8 US tablespoons, or a little under half a cup.