This converter turns US fluid ounces into oil barrels instantly, using the exact factor 1 US fluid ounce = 0.0001860119048 oil barrels. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
One eighth of a US cup, roughly 29.57 millilitres. The petroleum barrel: 42 US gallons, the global oil trading unit.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
US fluid ounces- The amount you are converting, measured in US fluid ounces
0.0001860119048- The exact number of oil barrels in one US fluid ounce
oil barrels- The converted result
How it works, step by step
- Enter the number of US fluid ounces you want to convert.
- The value is multiplied by 0.0001860119048, the exact conversion factor.
- The result is displayed in oil barrels, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 US fluid ounces
Multiply 5 by 0.0001860119. That gives 0.00093 oil barrels. A quick sanity check: one US fluid ounce is smaller than one oil barrel, so the number should get smaller — and it does.
Converting 72 US fluid ounces
72 × 0.0001860119 = 0.013393 oil barrels. Working backwards, 0.013393 ÷ 0.0001860119 returns 72 US fluid ounces, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many oil barrels are in one US fluid ounce?
Exactly 0.0001860119048. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert US fluid ounces to oil barrels?
Oil Barrels = US fluid ounces × 0.0001860119048. To reverse it, divide instead: US fluid ounces = oil barrels ÷ 0.0001860119048, which is the same as multiplying by 5376.
Is the US fluid ounce bigger than the oil barrel?
No. One US fluid ounce is only 0.000186012 of a oil barrel, so the oil barrel is the larger unit.
Why does my answer differ slightly from other us-fluid-ounces to oil-barrels converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a US fluid ounce?
One eighth of a US cup, roughly 29.57 millilitres.
What is a oil barrel?
The petroleum barrel: 42 US gallons, the global oil trading unit.
Us Fluid Ounces to oil barrels reference table
| Us Fluid Ounces | Oil Barrels |
|---|---|
| 0.5 fl oz | 0.000093 bbl |
| 1 fl oz | 0.000186 bbl |
| 2 fl oz | 0.000372 bbl |
| 3 fl oz | 0.000558 bbl |
| 5 fl oz | 0.00093 bbl |
| 10 fl oz | 0.00186 bbl |
| 15 fl oz | 0.00279 bbl |
| 20 fl oz | 0.00372 bbl |
| 25 fl oz | 0.00465 bbl |
| 50 fl oz | 0.009301 bbl |
| 75 fl oz | 0.013951 bbl |
| 100 fl oz | 0.018601 bbl |
| 250 fl oz | 0.046503 bbl |
| 500 fl oz | 0.093006 bbl |
| 1000 fl oz | 0.186012 bbl |
Exact factor: 1 US fluid ounce = 0.0001860119048 oil barrels. Values rounded for display.