Deciliter to Imperial fluid ounce
dl
imp fl oz
Conversion History
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Quick Reference Table (Deciliter to Imperial fluid ounce)
| Deciliter (dl) | Imperial fluid ounce (imp fl oz) |
|---|---|
| 0.5 | 1.75975398639999820574 |
| 1 | 3.51950797279999641148 |
| 2 | 7.03901594559999282296 |
| 5 | 17.59753986399998205741 |
| 10 | 35.19507972799996411481 |
| 20 | 70.39015945599992822963 |
About Deciliter (dl)
A deciliter (dL) is one tenth of a liter (0.1 L), equal to 100 milliliters. It is used in clinical laboratory medicine for reporting blood test results (blood glucose, haemoglobin, cholesterol in mg/dL or g/dL), in European nutrition labeling, and in Scandinavian cooking recipes. Despite its limited everyday use as a liquid measure, the deciliter is one of the most medically significant volume units — nearly every blood test result references it.
Blood glucose is reported in mg/dL. A small yoghurt pot or juice glass holds roughly 1–2 dL.
About Imperial fluid ounce (imp fl oz)
The imperial fluid ounce (imp fl oz) is a unit of volume equal to one twentieth of an imperial pint, approximately 28.413 milliliters. It is used in the United Kingdom and Commonwealth countries, though metric units have replaced it in most commercial contexts. The imperial fluid ounce is slightly smaller than the US fluid ounce (29.574 mL). UK spirits measures are now defined by law in 25 mL and 35 mL metric measures, which do not align exactly with the imperial fluid ounce.
A single spirits measure in a UK bar is 25 mL or 35 mL — close to, but not exactly, one imperial fluid ounce (28.41 mL).
Deciliter – Frequently Asked Questions
What is a deciliter used for in medicine?
Deciliters are the standard reference volume for blood test results. Blood glucose is reported in mg/dL, haemoglobin in g/dL, and cholesterol in mg/dL. Normal fasting blood glucose is 70–99 mg/dL.
How many milliliters are in a deciliter?
One deciliter (dL) equals 100 milliliters (mL). Since 1 dL = 0.1 L and 1 mL = 0.001 L, there are exactly 100 mL per dL.
Is the deciliter used in cooking?
Yes, in Scandinavia (Sweden, Norway, Denmark) recipes commonly list liquid ingredients in deciliters. 1 dL is roughly 6–7 tablespoons or just under half a US cup.
What is a normal blood glucose reading in mg/dL?
A normal fasting blood glucose is 70–99 mg/dL. Pre-diabetes is 100–125 mg/dL. Diabetes is diagnosed at ≥126 mg/dL on two separate tests. Post-meal levels should be below 140 mg/dL in non-diabetics.
How does a deciliter compare to a cup?
One deciliter (100 mL) is roughly 0.42 US cups. Conversely, one US cup is about 2.4 dL. For Scandinavian recipes, 1 dL ≈ just under half a cup.
Imperial fluid ounce – Frequently Asked Questions
Why did the UK abandon the fluid ounce for spirits but keep the pint for beer?
When the UK metricated in the 1990s, spirits measures were switched to 25 mL and 35 mL because publicans needed precise, legally enforceable pour sizes — and optic dispensers were easy to replace with metric ones. Beer, however, had enormous cultural resistance: the "pint" is deeply embedded in British pub identity, and the Campaign for Real Ale lobbied hard. Parliament granted an explicit exemption allowing draft beer and cider to be sold by the imperial pint. Milk got a similar exemption. The result is a hybrid system where your gin is metric but your beer is imperial.
How many imperial fluid ounces are in a UK pint?
There are exactly 20 imperial fluid ounces in one UK pint (568 mL). In the US system, 1 pint = 16 US fluid ounces (473 mL).
Is the imperial fluid ounce still used?
The imperial fluid ounce is rarely used for commercial transactions in the UK today, which metricated in the 1990s. UK spirits servings are now legally defined in metric (25 mL or 35 mL).
Why is a UK shot 25 mL not one fluid ounce?
When the UK metricated bar measures, the 25 mL "metric measure" replaced older imperial measures. One imperial fl oz (28.41 mL) was not adopted because the EU standardized on 25 mL. So UK shots are not exactly one fl oz.
How many milliliters are in an imperial fluid ounce?
One imperial fluid ounce equals approximately 28.413 mL. One US fluid ounce equals approximately 29.574 mL. Both round to roughly "30 mL" in casual usage, but the precise difference matters in pharmacology.