tier_1 conversion

Convert teaspoon (UK) to teaspoon (US)

Convert teaspoon (UK) to teaspoon (US) with a verified formula, worked example, conversion table, precision guidance, and reverse conversion.

teaspoon (UK) to teaspoon (US)

teaspoon (UK) to teaspoon (US)

teaspoon (US)

Quick answer

1 teaspoon (UK) = 1.2009499255 teaspoon (US).

Formula

teaspoon (US) = teaspoon (UK) × 1.200949925504862751691205919

Precision

The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.

How to convert teaspoon (UK) to teaspoon (US)

  • Enter a value in teaspoon (UK).
  • Apply a direct multiplication by 1.200949925504862751691205919; no offset or reciprocal step is required.
  • Round the displayed teaspoon (US) value only when needed.

About these units

teaspoon (UK) is a unit used in volume conversions. Volume measures three-dimensional space or liquid capacity. teaspoon (US) is a unit used in volume conversions. Volume measures three-dimensional space or liquid capacity.

Explore related conversions

teaspoon (UK) to teaspoon (US) conversion table

teaspoon (UK)teaspoon (US)
0 teaspoon (UK)0e-27 teaspoon (US)
1 teaspoon (UK)1.20094992550 teaspoon (US)
5 teaspoon (UK)6.00474962752 teaspoon (US)
10 teaspoon (UK)12.0094992550 teaspoon (US)
25 teaspoon (UK)30.0237481376 teaspoon (US)
100 teaspoon (UK)120.094992550 teaspoon (US)

Frequently asked questions

How do I convert from teaspoon (UK) to teaspoon (US)?

Apply a direct multiplication by 1.200949925504862751691205919; no offset or reciprocal step is required.

What formula does CalculatorHQ use for teaspoon (UK) to teaspoon (US)?

teaspoon (US) = teaspoon (UK) × 1.200949925504862751691205919

How should I round the result?

The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.

Can I convert teaspoon (US) back to teaspoon (UK)?

Yes. Use the linked reverse conversion, whose formula is validated against this pair with round-trip tests.