How many Teaspoons (metric) are in 1 Teaspoon (US)?

There are exactly 0.9858 Teaspoons (metric) (tsp) in 1 Teaspoon (US) (tsp). This means that to find the equivalent in Teaspoons (metric), you multiply your Teaspoon (US) value by 0.9858. This conversion factor is used worldwide in science, engineering, and everyday measurements.

What is 10 Teaspoons (US) in Teaspoons (metric)?

10 Teaspoons (US) (tsp) is exactly 9.858 Teaspoons (metric) (tsp). This is calculated by applying the standard conversion factor: 1 tsp = 0.9858 tsp.

What is 100 Teaspoons (US) in Teaspoons (metric)?

100 Teaspoons (US) (tsp) is exactly 98.58 Teaspoons (metric) (tsp). This is calculated by applying the standard conversion factor: 1 tsp = 0.9858 tsp.

How do I convert Teaspoons (metric) back to Teaspoons (US)?

To convert Teaspoons (metric) to Teaspoons (US), divide the value in Teaspoons (metric) by 0.9858. For example, 1 tsp = 1.014404545 tsp. You can also use the swap button on the converter above to instantly switch the conversion direction.

Why would I need to convert Teaspoons (US) to Teaspoons (metric)?

Converting Teaspoons (US) to Teaspoons (metric) is commonly needed in international trade, travel, academic studies, engineering projects, and everyday tasks where different measurement systems are used. Many countries use different standard units, making this conversion essential for accurate communication and calculations.

Is Teaspoon (US) bigger than Teaspoon (metric)?

To compare, look at the conversion factor: 1 tsp = 0.9858 tsp. If the result is greater than 1, then one Teaspoon (US) is larger than one Teaspoon (metric). Conversely, 1 tsp = 1.014404545 tsp. Use this relationship to quickly understand the relative size of these two units.

What is the quickest way to convert Teaspoons (US) to Teaspoons (metric)?

The quickest way is to multiply your Teaspoons (US) value by 0.9858. For a mental math shortcut, remember that 1 tsp is approximately 0.9858 tsp. Round this factor to a convenient number for rough estimates, or use the UnitShift converter above for exact results instantly.

How accurate is this Teaspoon (US) to Teaspoon (metric) converter?

This converter uses full floating-point precision (64-bit double precision) for all calculations, ensuring results accurate to approximately 15 significant digits. The conversion factors between Teaspoon (US) and Teaspoon (metric) are based on internationally recognized standards. For everyday use, scientific work, and engineering applications, this level of precision exceeds typical requirements.

Teaspoon (US) → Teaspoon (metric)

From

0.9858tsp (metric)

Conversion Table

Conversion table from Teaspoon (US) to Teaspoon (metric)
Teaspoon (US) (tsp (US))	Teaspoon (metric) (tsp (metric))
0.001 tsp (US)	0.0009858 tsp (metric)
0.01 tsp (US)	0.009858 tsp (metric)
0.1 tsp (US)	0.09858 tsp (metric)
1 tsp (US)	0.9858 tsp (metric)
2 tsp (US)	1.9716 tsp (metric)
3 tsp (US)	2.9574 tsp (metric)
4 tsp (US)	3.9432 tsp (metric)
5 tsp (US)	4.929 tsp (metric)
10 tsp (US)	9.858 tsp (metric)
15 tsp (US)	14.787 tsp (metric)
20 tsp (US)	19.716 tsp (metric)
25 tsp (US)	24.645 tsp (metric)
50 tsp (US)	49.29 tsp (metric)
100 tsp (US)	98.58 tsp (metric)
250 tsp (US)	246.45 tsp (metric)
500 tsp (US)	492.9 tsp (metric)
1,000 tsp (US)	985.8 tsp (metric)
5,000 tsp (US)	4,929 tsp (metric)
10,000 tsp (US)	9,858 tsp (metric)

Formula

To convert Teaspoons (US) to Teaspoons (metric), divide the value by 1.01440. For example, 5 tsp equals 4.929 tsp. You can also use UnitShift's free online converter above for instant, accurate results without manual calculation.

Teaspoon (US) → Teaspoon (metric): divide the value by 1.01440

1 tsp = 0.9858 tsp. To convert Teaspoons (US) to Teaspoons (metric), multiply the teaspoon (us) value by 0.9858.

Quick Facts

1 tsp

0.9858 tsp

1 tsp

1.014404545 tsp

10 tsp

9.858 tsp

100 tsp

98.58 tsp

How to Convert Teaspoons (US) to Teaspoons (metric)

Converting teaspoons (us) to teaspoons (metric) is one of the most common cooking conversions. Whether you're working with international measurements, academic research, or everyday calculations, understanding the relationship between teaspoons (us) and teaspoons (metric) is essential. One teaspoon (us) (tsp) equals exactly 0.9858 teaspoons (metric) (tsp), and conversely, one teaspoon (metric) equals 1.014404545 teaspoons (us).

This conversion is frequently used in everyday measurements and calculations and professional and academic work. For quick reference: 10 teaspoons (us) = 9.858 teaspoons (metric), and 100 teaspoons (us) = 98.58 teaspoons (metric). Our converter above handles any value instantly, including decimal and negative numbers.

The teaspoon (us) and teaspoon (metric) are both units of cooking. The conversion factor between them is constant, making it straightforward to convert in either direction. Other common applications include international communication and commerce and scientific research and engineering.

Use the conversion table below for pre-calculated values, or enter any custom number in the converter above. All calculations are performed with full floating-point precision to ensure accuracy for both everyday use and professional applications. Bookmark this page for quick access whenever you need to convert teaspoons (us) to teaspoons (metric).