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About this tool
Convert teaspoons to US cups instantly. Free, bidirectional, and fully in-browser.
1 teaspoon equals 0.02083333333 US cups — enter any teaspoon value to convert it to US cups instantly. This Teaspoon to US cup converter is a client-side tool: it applies a single multiplication (cup = tsp × 0.02083333333) in your browser, updates the moment you type, and works in both directions — edit either field, or press swap, to convert US cups back to teaspoons. A reference table lists common teaspoon values already converted, and nothing you enter is sent to a server.
Open Teaspoon to US cup Converter on AltFTool — it loads instantly in your browser.
Type the value you want to convert into the Teaspoon field.
Read the equivalent in US cups in the result field, and copy it if needed.
Use the decimal-places slider for more or less precision, or press swap to convert US cups to teaspoons.
The result updates as you type, and the swap button flips the conversion to us cup → teaspoon without reloading.
The conversion uses the precise factor (cup = tsp × 0.02083333333), so the number matches a manual calculation to the decimal places you choose.
A slider sets 0–10 decimal places, and very small or very large results switch to scientific notation instead of rounding to zero.
Everything runs locally in your browser — no upload, no account, no limit on conversions.
One teaspoon is 0.02083333333 US cups. Multiply the teaspoon value by 0.02083333333 to convert. For example, 10 tsp = 0.2083333333 cup.
cup = tsp × 0.02083333333. This tool applies it automatically and shows a worked example: 10 tsp = 0.2083333333 cup.
Yes. Press the swap button, or type into the us cup field, and the tool converts US cups to teaspoons using the inverse of the same relationship.
It uses the standard volume and capacity definition (cup = tsp × 0.02083333333), not a rounded approximation, so results are exact to the number of decimal places you select.
Yes. The converter is a browser-side script with no network calls: your values are never uploaded, and once the page has loaded it keeps working without a connection.
Add the Teaspoon to US cup Converter widget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
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