1 imperial cup in US customary teaspoons

Conversion

1 imperial cup is equivalent to 57.645596424233 US customary teaspoons.^[1]

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary teaspoon is equal to 0.0173473788464373 times 1 imperial cup.

It can also be expressed as: 1 imperial cup is equal to $\frac{1}{0.0173473788464373}$ US customary teaspoons.

Approximation

An approximate numerical result would be: one imperial cup is about fifty-seven point six four US customary teaspoons, or alternatively, a US customary teaspoon is about zero point zero two times one imperial cup.

Units involved

This is how the units in this conversion are defined:

Imperial Cups

"The cup is a unit of measurement for volume, used in cooking to measure liquids (fluid measurement) and bulk foods such as granulated sugar (dry measurement). The imperial cup is half an imperial pint. It is no longer in common use, but many recipe books still include it."

Wikipedia page of imperial cups

Us Customary Teaspoons

"In the United States one teaspoon as a unit of culinary measure is 1⁄3 tablespoon, that is, 4.92892159375 ml; it is exactly 1 1⁄3 US fluid drams, 1⁄6 US fl oz, 1⁄48 US cup, and 1⁄768 US liquid gallon and 77⁄256 or 0.30078125 cubic inches. For nutritional labeling on food packages in the US, the teaspoon is defined as precisely 5 ml."

Wikipedia page of US customary teaspoons

Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.