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MPG ↔ litres per 100 km. US cups to grams. For drivers and bakers alike.
Convert fuel consumption between US (MPG) and European (l/100 km) standards. Formula: 235.215 / MPG = l/100 km.
American recipes measure by volume. This calculator converts cups to grams based on the density of each ingredient.
Most of the world relies on the metric system, which emerged during the French Revolution in the late 18th century. Its brilliance lies in base-10 logic — everything multiplies and divides by tens, hundreds, or thousands, making calculations effortless. The United States (and partially the UK) retained a system rooted in British imperial measures, known as US Customary Units. These measures historically derived from the real world — proportions of the human body (foot, inch) or agricultural needs.
If you enjoy baking from international blogs or Pinterest, you've certainly encountered the measure "1 cup." Americans prefer measuring by volume (approx. 240 ml) rather than weight. The problem arises when converting that volume to grams. One cup behaves very differently depending on what you put in it. A cup of fluffy all-purpose flour weighs just 120 grams, while the same cup of granulated sugar weighs 200 grams and butter weighs 225 grams. This is why a single universal converter doesn't work — you must account for the density of each specific ingredient.
When reading foreign car reviews you often encounter the abbreviation MPG (Miles Per Gallon). The difference between Europe and the US isn't just units (miles and gallons vs. kilometres and litres) — it's the underlying philosophy of measurement.
Europe measures the volume of fuel needed to travel a fixed distance (how many litres to drive 100 km). A smaller number means a more efficient car. The US measures the distance you can travel on a fixed volume of fuel (how many miles per gallon). A larger number means a more efficient car. The relationship between the two is an inverse proportion, which makes mental conversion without a calculator very tricky.