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Convert US Teaspoons to Imperial Fluid Ounces

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Measurement

Volume Converter
10 sig. figures
Formula1 US tsp ร— 0.1734737885 = 0.1734737885 imp fl oz
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About Volume Conversions

Volume trips people up because US customary and imperial units share names but not sizes. A US gallon (3.785 liters) runs about 17% smaller than an imperial gallon (4.546 liters), and the gap carries down into pints, quarts, and fluid ounces. Cooking is where it bites: a British recipe's pint of milk is 568 ml, an American pint only 473 ml. Science sidesteps the mess with metric volume, where 1 mL equals exactly 1 cmยณ. US and imperial variants stay separate below, with exact conversion chains holding precision across the swap.

Quick Conversions

US TeaspoonsImperial Fluid Ounces
1 US tsp0.173474 imp fl oz
2 US tsp0.346948 imp fl oz
5 US tsp0.867369 imp fl oz
10 US tsp1.73474 imp fl oz
25 US tsp4.33684 imp fl oz
50 US tsp8.67369 imp fl oz
100 US tsp17.3474 imp fl oz
250 US tsp43.3684 imp fl oz
500 US tsp86.7369 imp fl oz
1000 US tsp173.474 imp fl oz
Unit NameSymbolPer 1 US Teaspoon
Cubic Centimetercmยณ4.92892
Cubic Footftยณ0.000174063
Cubic Inchinยณ0.300781
Cubic Metermยณ0.00000492892
Imperial Fluid Ounceimp fl oz0.173474
Imperial Gallonimp gal0.00108421
Imperial Pintimp pt0.00867369
LiterL0.00492892
MillilitermL4.92892
US CupUS cup0.0208333
US Fluid OunceUS fl oz0.166667
US GallonUS gal0.00130208
US PintUS pt0.0104167
US QuartUS qt0.00520833
US TablespoonUS tbsp0.333333
US TeaspoonUS tsp1

Frequently Asked Questions

How do I convert US Teaspoons to Imperial Fluid Ounces?

To convert US Teaspoons to Imperial Fluid Ounces, use the conversion where 1 US Teaspoon (US tsp) = 0.173474 Imperial Fluid Ounces (imp fl oz). For example, 1 US Teaspoon = 0.173474 Imperial Fluid Ounces.

What are common US Teaspoon to Imperial Fluid Ounce conversions?

Here are common conversions: 1 US Teaspoons = 0.173474 Imperial Fluid Ounces, 5 US Teaspoons = 0.867369 Imperial Fluid Ounces, 10 US Teaspoons = 1.73474 Imperial Fluid Ounces, 25 US Teaspoons = 4.33684 Imperial Fluid Ounces, 50 US Teaspoons = 8.67369 Imperial Fluid Ounces, 100 US Teaspoons = 17.3474 Imperial Fluid Ounces.

When would I need to convert US Teaspoons to Imperial Fluid Ounces?

Volume conversions come up when scaling recipes between metric (milliliters, liters) and US customary units (cups, fluid ounces), calculating fuel tank capacities across regions, and in chemistry and manufacturing where a precise liquid measurement decides the outcome.

How precise are the conversions?

All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.

Sources

Read our full methodology โ†’