Imperial cup to Deciliter

imp cup

1 imp cup

dl

2.8413063 dl

Conversion History

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1 imp cup (Imperial cup) → 2.8413063 dl (Deciliter)

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Quick Reference Table (Imperial cup to Deciliter)

Imperial cup (imp cup)Deciliter (dl)
0.250.71032656
0.51.4206531
12.8413063
25.6826125
411.365225
822.73045

Results rounded to a maximum of 8 significant figures



About Imperial cup (imp cup)

The imperial cup is a unit of volume equal to half an imperial pint, approximately 284.1 milliliters. It was historically used in British cooking recipes and is still found in older UK and Commonwealth cookbooks. The imperial cup is distinct from the US legal cup (240 mL) and the Australian metric cup (250 mL). Since the UK's adoption of metric measures, the imperial cup has largely fallen out of use, replaced by milliliters and the 250 mL metric cup.

Older British recipes (pre-1970s) may call for cups measured as imperial cups (~284 mL). A standard UK teacup holds about 1 imperial cup.

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.


Imperial cup – Frequently Asked Questions

One imperial cup equals approximately 284.1 mL — half an imperial pint (568 mL). This is larger than both the US legal cup (240 mL) and the Australian metric cup (250 mL).

The imperial cup is largely obsolete in modern UK cooking, which now uses metric measurements. It may appear in old British recipe books published before the 1970s metric changeover.

An imperial cup (284.1 mL) is about 18% larger than a US legal cup (240 mL). When using old British recipes in the US, 1 imperial cup ≈ 1.18 US cups — worth adjusting in baking.

Modern British recipes use metric measures: milliliters (mL) for liquids and grams (g) for solids. The BBC and major UK food publishers phased out cup measures in favor of grams through the 1970s–1990s.

There are 16 imperial cups in one imperial gallon (8 pints × 2 cups/pint = 16 cups).

Deciliter – Frequently Asked Questions

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.

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.

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.

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.

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.

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