623 metric teaspoons in dry gallons
Result
The conversion result is: 623 metric teaspoons is equivalent to 0.707169623999372 dry gallons.[1]
Conversion formula
How to convert 623 metric teaspoons to dry gallons?
We know (by definition) that: 1 brteaspoon ≈ 0.00113510373033607 drygallon.
We can set up a proportion to solve for the number of dry gallons.
1 brteaspoon / 623 brteaspoon ≈ 0.00113510373033607 drygallon / x drygallon
Now, we cross multiply to solve for our unknown x:
x drygallon ≈ (623 brteaspoon / 1 brteaspoon) * 0.00113510373033607 drygallon → x drygallon ≈ 0.7071696239993716 drygallon
Conclusion:
623 brteaspoon ≈ 0.7071696239993716 drygallon

Conversion in the opposite direction
The inverse of the conversion factor is that 1 dry gallon is equal to 1.41408788791653 times 623 metric teaspoons.
It can also be expressed as: 623 metric teaspoons is equal to 1 / 1.41408788791653 dry gallons.
Approximation
An approximate numerical result would be: six hundred and twenty-three metric teaspoons is about zero point seven one dry gallons, or alternatively, a dry gallon is about one point four zero times six hundred and twenty-three metric 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.