US teaspoon to UK gallon Converter
1 tsp = 0.001084 gal (UK) — convert instantly with formula and table.
Use the converter above for an immediate result — it recalculates on every keystroke and works offline once the page has loaded.
Quick answer: one us teaspoon equals 0.001084 UK gallons. So to convert US teaspoons to UK gallons, multiply by 0.00108421.
How to convert US teaspoons to UK gallons
UK gallons = US teaspoons × 0.0010842112
The US teaspoon is defined as exactly 4.92892159375 ml — one third of a tablespoon — and anchors small quantities in American recipes.
The imperial (UK) gallon is 4.54609 liters — about 20% larger than the US gallon. Confusing the two is a classic source of fuel-economy errors.
US teaspoon to UK gallon conversion table
| US teaspoon (tsp) | UK gallon (gal (UK)) |
|---|---|
| 0.01 tsp | 0.00001084 gal (UK) |
| 0.1 tsp | 0.00010842 gal (UK) |
| 0.25 tsp | 0.00027105 gal (UK) |
| 0.4 tsp | 0.00043368 gal (UK) |
| 0.75 tsp | 0.00081316 gal (UK) |
| 1.25 tsp | 0.001355 gal (UK) |
| 1.75 tsp | 0.001897 gal (UK) |
| 2.5 tsp | 0.002711 gal (UK) |
| 3.5 tsp | 0.003795 gal (UK) |
| 4.5 tsp | 0.004879 gal (UK) |
| 6 tsp | 0.006505 gal (UK) |
| 8 tsp | 0.008674 gal (UK) |
| 10 tsp | 0.010842 gal (UK) |
| 12 tsp | 0.013011 gal (UK) |
| 14 tsp | 0.015179 gal (UK) |
| 16 tsp | 0.017347 gal (UK) |
| 18 tsp | 0.019516 gal (UK) |
| 20 tsp | 0.021684 gal (UK) |
| 24 tsp | 0.026021 gal (UK) |
| 26 tsp | 0.028189 gal (UK) |
| 30 tsp | 0.032526 gal (UK) |
| 35 tsp | 0.037947 gal (UK) |
| 45 tsp | 0.04879 gal (UK) |
| 55 tsp | 0.059632 gal (UK) |
| 65 tsp | 0.070474 gal (UK) |
| 75 tsp | 0.081316 gal (UK) |
| 85 tsp | 0.092158 gal (UK) |
| 95 tsp | 0.103 gal (UK) |
| 110 tsp | 0.119263 gal (UK) |
| 125 tsp | 0.135526 gal (UK) |
| 175 tsp | 0.189737 gal (UK) |
| 250 tsp | 0.271053 gal (UK) |
| 350 tsp | 0.379474 gal (UK) |
| 450 tsp | 0.487895 gal (UK) |
| 600 tsp | 0.650527 gal (UK) |
| 750 tsp | 0.813158 gal (UK) |
| 900 tsp | 0.97579 gal (UK) |
| 1,500 tsp | 1.6263 gal (UK) |
| 2,500 tsp | 2.7105 gal (UK) |
| 10,000 tsp | 10.8421 gal (UK) |
Need the opposite direction? Use the UK gallon to US teaspoon converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many UK gallons are in one us teaspoon?
One us teaspoon equals 0.001084 UK gallons. Multiply any us teaspoon value by 0.00108421 to get UK gallons.
What is 10 US teaspoons in UK gallons?
10 US teaspoons equal 0.010842 UK gallons (10 × 0.001084).
Is the us teaspoon to uk gallon conversion exact?
The conversion factor used here (0.0010842112) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.