423 metric teaspoons in US customary teaspoons

Conversion formula
How to convert 423 metric teaspoons to US customary teaspoons?

We know (by definition) that: $1\mathrm{brteaspoon}\approx 1.01442068105529\mathrm{usteaspoon}$

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: 423 ⁢ brteaspoon ≈ 429.0999480863877 ⁢ usteaspoon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US customary teaspoon is equal to 0.00233045938238771 times 423 metric teaspoons.

It can also be expressed as: 423 metric teaspoons is equal to $\frac{1}{\mathrm{0.00233045938238771}}$ US customary teaspoons.

Approximation

An approximate numerical result would be: four hundred and twenty-three metric teaspoons is about four hundred and twenty-nine point one zero US customary teaspoons, or alternatively, a US customary teaspoon is about zero times four hundred and twenty-three metric teaspoons.