Power Calculators

🧪 US Gallons to Imperial Teaspoons Converter

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Converted Value
159,873

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⚡ US Gallons to Imperial Teaspoons: the quick answer

1 gal = 639.494 tsp-uk 1 US gallon equals 639.494 imperial teaspoons

To convert US gallons to imperial teaspoons, multiply the value by 639.494. To go the other way, multiply imperial teaspoons by 0.00156374 to get US gallons.

↔ Convert imperial teaspoons to US gallons instead

🧮 Formula

US Gallons to Imperial Teaspoons
tsp-uk = gal × 639.494
Imperial Teaspoons to US Gallons
gal = tsp-uk × 0.00156374

Where

  • gal = the volume in US gallons
  • tsp-uk = the volume in imperial teaspoons
Every unit here is defined by its volume in cubic meters, so the conversion factor is (cubic meters per US gallon) ÷ (cubic meters per imperial teaspoon).

📊 US Gallons to Imperial Teaspoons conversion table

US Gallons (gal)Imperial Teaspoons (tsp-uk)
1 gal639.494 tsp-uk
2 gal1,278.99 tsp-uk
5 gal3,197.47 tsp-uk
10 gal6,394.94 tsp-uk
20 gal12,789.9 tsp-uk
50 gal31,974.7 tsp-uk
100 gal63,949.4 tsp-uk
500 gal319,747 tsp-uk
1,000 gal639,494 tsp-uk

✏️ Worked examples

Convert 25 US gallons to imperial teaspoons

25 gal × 639.494 = 15,987.3 tsp-uk

Try this example →

Convert 250 US gallons to imperial teaspoons

250 gal × 639.494 = 159,873 tsp-uk

Try this example →

📘 About these units

US gallon (gal). The US liquid gallon is 231 cubic inches, exactly 3.785411784 liters.

Imperial teaspoon (tsp-uk). The British imperial teaspoon is 5.919 mL.

❓ Frequently asked questions

How many imperial teaspoons are in one US gallon?

There are 639.494 imperial teaspoons in one US gallon.

How do I convert US gallons to imperial teaspoons?

Multiply the number of US gallons by 639.494. For example, 10 US gallons equal 6,394.94 imperial teaspoons.

How many US gallons are in one imperial teaspoon?

One imperial teaspoon equals 0.00156374 US gallons.