How do I convert teaspoons back to US cups?

Use the reverse converter: 1 teaspoon equals 0.0208333 cup.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert US cups to teaspoons, multiply the value by 48.

tsp = cup × 48

40 cup × 48 = 1920 tsp

Note: "cup" here means the US cup (about 236.6 mL). Metric cups (250 mL), imperial cups and US/UK fluid ounces are listed as separate units.

US Cup (cup): The US customary cup (about 236.588 mL), the default "cup" in American recipes.
Teaspoon (tsp): A US kitchen measure equal to about 4.929 millilitres, used in recipes.

How do I convert US cups to teaspoons?: To convert US cups to teaspoons, multiply the value by 48.
How many teaspoons are in 1 US cup?: 1 US cup equals 48 tsp.
How many teaspoons are in 10 US cups?: 10 cup equals 480 tsp.
How do I convert teaspoons back to US cups?: Use the reverse converter: 1 teaspoon equals 0.0208333 cup.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.