645 US customary teaspoons in US quarts

Conversion formula
How to convert 645 US customary teaspoons to US quarts?

We know (by definition) that: $1\mathrm{usteaspoon}\approx 0.00520833333333333\mathrm{usquart}$

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

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

Conclusion: 645 ⁢ usteaspoon ≈ 3.359374999999998 ⁢ usquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US quart is equal to 0.297674418604651 times 645 US customary teaspoons.

It can also be expressed as: 645 US customary teaspoons is equal to $\frac{1}{\mathrm{0.297674418604651}}$ US quarts.

Approximation

An approximate numerical result would be: six hundred and forty-five US customary teaspoons is about three point three five US quarts, or alternatively, a US quart is about zero point three zero times six hundred and forty-five US customary teaspoons.