420 imperial cups in US customary teaspoons

Conversion formula
How to convert 420 imperial cups to US customary teaspoons?

We know (by definition) that: $1\mathrm{brcup}\approx 57.645596424233\mathrm{usteaspoon}$

We can set up a proportion to solve for the number of US customary teaspoons.

Now, we cross multiply to solve for our unknown $x$:

Conclusion: 420 ⁢ brcup ≈ 24211.15049817786 ⁢ usteaspoon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary teaspoon is equal to 4.13032829677078e-05 times 420 imperial cups.

It can also be expressed as: 420 imperial cups is equal to $\frac{1}{\mathrm{4.13032829677078e-05}}$ US customary teaspoons.

Approximation

An approximate numerical result would be: four hundred and twenty imperial cups is about twenty-four thousand, two hundred and eleven point one five US customary teaspoons, or alternatively, a US customary teaspoon is about zero times four hundred and twenty imperial cups.