Convert Teaspoon (Metric) to US gallons
Western Europe · Cooking Measures · active · modern
Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.
1 Teaspoon (Metric) = 0.00132086 US gallons
US gallons = Teaspoon (Metric) × 0.0013208603
Convert any amount
Teaspoon (Metric) to US gallons table
| Teaspoon (Metric) | US gallons |
|---|---|
| 0.25 Teaspoon (Metric) | 0.000330215 US gallons |
| 0.5 Teaspoon (Metric) | 0.00066043 US gallons |
| 1 Teaspoon (Metric) | 0.00132086 US gallons |
| 2 Teaspoon (Metric) | 0.00264172 US gallons |
| 3 Teaspoon (Metric) | 0.00396258 US gallons |
| 4 Teaspoon (Metric) | 0.00528344 US gallons |
| 5 Teaspoon (Metric) | 0.0066043 US gallons |
| 10 Teaspoon (Metric) | 0.0132086 US gallons |
| 20 Teaspoon (Metric) | 0.0264172 US gallons |
| 25 Teaspoon (Metric) | 0.0330215 US gallons |
| 50 Teaspoon (Metric) | 0.066043 US gallons |
| 100 Teaspoon (Metric) | 0.132086 US gallons |
About the Teaspoon (Metric)
Metric teaspoon = 5ml exactly.
- Symbol
- tsp m
- Value in SI
- 1 Teaspoon (Metric) = 0.005 litre
- Typical use
- cooking
- Source
- UnitConvertLab measurement atlas
Every atlas conversion routes through the SI litre. See our methodology and data provenance pages for how these values are sourced and verified.
Related units and variant risk
Other cooking measures units in the Western Europe family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.
- Gill (UK) to US gallonsHistorically reconstructed
- Tablespoon (Metric) to US gallonsConventional value
- Cup (UK/Imperial) to US gallonsConventional value
- Cup (Metric) to US gallonsConventional value
- Fluid Ounce (UK) to US gallonsConventional value
- Gallon (UK) to US gallonsConventional value
- Gallon (US) to US gallonsConventional value
- Pint (UK) to US gallonsConventional value
Related conversions
Frequently asked
How many US gallons are in a Teaspoon (Metric)?
1 Teaspoon (Metric) = 0.00132086 US gallons. Multiply the number of Teaspoon (Metric) by 0.0013208603 to get US gallons.
What is Teaspoon (Metric) used for?
Metric teaspoon = 5ml exactly. It is classified as active and dates from the modern period.
Is the Teaspoon (Metric) value exact?
Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, so the arithmetic itself introduces no rounding beyond the digits shown.
How reliable is this Teaspoon (Metric) conversion?
Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.
Cite this page
UnitConvertLab. (2026). Convert Teaspoon (Metric) to US gallons. UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/tsp-metric-to-us-gallon
Report an incorrect value or source
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