CONVERSION · VOLUME & COOKING

US cups to us teaspoons converter

Convert us cups to us teaspoons with an editable calculator, worked example, formula and reference table. Check the unit definitions before you convert.

Updated · How we check
TRY YOUR OWN NUMBER Reverse conversion

Use a decimal point, such as 2.5. Enter a value in US cup; the result is in US tsp.

US teaspoons≈ 480US tsp

Formula

US tsp ≈ US cup × 48

Worked example

Convert 10 US cup to US tsp:

10 US cup ≈ 480 US tsp

Multiply your US cup value by the factor above. The calculator uses the full conversion factor before rounding the displayed answer.

US cups to us teaspoons table

Reference values rounded to 10 significant digits. Use the converter above for other amounts.

Approximate conversion reference
US cups (US cup)US teaspoons (US tsp)
0.1≈ 4.8
0.5≈ 24
1≈ 48
2≈ 96
5≈ 240
10≈ 480
25≈ 1,200
50≈ 2,400
100≈ 4,800
1000≈ 48,000

Understanding us cups

The US customary cup used here is 236.5882365 mL. Check whether your recipe instead specifies a 240 mL or 250 mL cup.

Understanding us teaspoons

This tool uses a US customary teaspoon: 4.92892159375 mL. A metric recipe teaspoon of 5 mL is a different definition.

Precision and rounding

The calculator keeps decimal precision during the conversion. Displayed values use up to 10 significant digits; an approximation sign marks the reference results. Keep extra digits until your final measurement or purchase decision.

References

Definitions and method references. Example rates and prices on this page are editable assumptions.