US legal cup to Cubic kilometer
cup
km³
Conversion History
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|---|---|---|
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Quick Reference Table (US legal cup to Cubic kilometer)
| US legal cup (cup) | Cubic kilometer (km³) |
|---|---|
| 0.25 | 0.00000000000006 |
| 0.33 | 0.0000000000000792 |
| 0.5 | 0.00000000000012 |
| 1 | 0.00000000000024 |
| 2 | 0.00000000000048 |
| 4 | 0.00000000000096 |
About US legal cup (cup)
The US legal cup is a unit of volume defined as exactly 240 milliliters, used on US nutrition labels by FDA regulation. It differs slightly from the US customary cup (236.588 mL = 8 US fluid ounces). In everyday cooking, the 4 mL difference is negligible, and the two are used interchangeably. Australia uses a 250 mL metric cup, which is noticeably larger. The cup is the most common volume unit in US cooking recipes.
A standard measuring cup in a US kitchen set holds 240 mL. Cereal serving sizes on nutrition labels are typically 1 cup (240 mL).
About Cubic kilometer (km³)
A cubic kilometer (km³) is the volume of a cube with 1 km sides, equal to one trillion liters (10¹² L). It is used in geoscience, oceanography, glaciology, and climate science to express volumes of ice sheets, ocean basins, volcanic eruptions, and river discharge over long periods. The volume of Earth's oceans is approximately 1,335,000 km³. The Greenland ice sheet contains about 2,850,000 km³ of ice. Major volcanic eruptions are described by the dense rock equivalent (DRE) in km³.
Lake Superior holds about 12,100 km³ of water. A major explosive volcanic eruption might eject 1–1,000 km³ of material.
US legal cup – Frequently Asked Questions
How many milliliters is a US cup?
The US legal cup (nutrition labels) is exactly 240 mL. The US customary cup (8 US fl oz) is approximately 236.6 mL. In cooking, both are treated as 240 mL; the difference is negligible for most recipes.
How does the US cup differ from the Australian cup?
The US legal cup is 240 mL; the Australian metric cup is 250 mL — about 4% larger. Australian recipes calling for 4 cups use 1,000 mL vs 960 mL with US cups, which can matter in baking.
How many cups are in a liter?
Approximately 4.167 US legal cups fit in one liter (1,000 mL ÷ 240 mL). Practically, 4 cups ≈ 960 mL ≈ 1 liter — often used interchangeably in cooking.
How many cups of coffee does a standard machine make?
Most US drip coffee makers define a "cup" as 5 or 6 fl oz (148–177 mL) — smaller than the standard 8 fl oz measuring cup. A "12-cup" coffee maker typically makes 60–72 fl oz, or only about 7–9 standard 8-oz cups.
Why do baking recipes fail more often than cooking recipes when measurements are slightly off?
Baking is chemistry — flour, fat, liquid, and leavening interact in precise ratios. Too much flour (even 10–15% extra from packing a cup too tightly) produces dense, dry results. Too much liquid makes cake batter collapse. Cooking is more forgiving because sautéing, braising, and roasting rely on technique and taste adjustment, not exact chemical reactions. This is why professional bakers weigh ingredients in grams rather than using volume cups — a cup of flour can vary from 120 to 160 g depending on how it is scooped.
Cubic kilometer – Frequently Asked Questions
What is a cubic kilometer?
A cubic kilometer (km³) is the volume of a cube 1 km on each side, equal to one trillion liters or one billion cubic meters. It is the standard unit in geoscience for expressing planetary-scale volumes of water, ice, and magma.
How much water is in all of Earth's oceans in km³?
Earth's oceans contain approximately 1,335,000 km³ of water. The world's total freshwater supply is about 35,000 km³, of which most (roughly 26,000 km³) is locked in glaciers and ice caps.
How do scientists measure volcanic eruption volumes in km³?
Volcanologists calculate eruption size as the Dense Rock Equivalent (DRE) in km³ — the volume of solid rock that would result if fragmented material were compressed. The 1815 Tambora eruption ejected roughly 160 km³ DRE, the largest in recorded history.
How many liters are in a cubic kilometer?
One cubic kilometer equals 1,000,000,000,000 liters (one trillion liters or one petaliter). It also equals 10⁹ m³ (one billion cubic meters).
What is the Greenland ice sheet volume in km³?
The Greenland ice sheet contains approximately 2,850,000 km³ of ice. If fully melted, it would raise global sea level by about 7.2 meters. Annual ice loss from Greenland is measured in hundreds of km³ per year.