ConvBolt — Unit ConverterUS gallons to Teaspoons Converter
Converting US gallons to teaspoons is a multiplication by a fixed factor: 1 gal = 768 tsp. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one us gallon works out to 768 tsp, the teaspoon is the far larger unit of the two: a figure given in teaspoon always carries a larger number than the same measurement in us gallon. A chart drawn in gal can hide that, so check which label the axis uses before you compare two readings.
Kitchen and workshop measuring are where this pair comes up: a jug marked in US gallons alongside a recipe or container printed in teaspoons is the classic case, and it is why the two labels rarely agree to the eye.
The conversion factor used here is 768 tsp per us gallon (0 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 gal a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 0.001302083 gal per tsp, the exact reciprocal, so a round trip through both pages returns your original number.
US gallons to Teaspoons formula
Use this formula to convert any us gallon value to teaspoons:
Worked example: 100 gal × 768 = 76800 tsp.
US gallons to Teaspoons conversion table
| US gallons (gal) | Teaspoons (tsp) |
|---|---|
| 0.5 gal | 384 tsp |
| 1 gal | 768 tsp |
| 2 gal | 1536 tsp |
| 5 gal | 3840 tsp |
| 10 gal | 7680 tsp |
| 20 gal | 15360 tsp |
| 50 gal | 38400 tsp |
| 100 gal | 76800 tsp |
| 500 gal | 384000 tsp |
| 1000 gal | 768000 tsp |
How to convert US gallons to teaspoons
Multiply the us gallon value by 768 to get the equivalent in teaspoons. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the Teaspoons to US gallons converter instead of dividing by hand; both pages use the same source factors. For every other gal conversion in one place, see the gal conversion hub.
Frequently asked questions
How many teaspoons are in 1 us gallon?
1 us gallon = 768 tsp.
What is 100 US gallons in teaspoons?
100 gal = 76800 tsp.
Is converting US gallons to teaspoons the same as teaspoons to US gallons?
No — the direction changes the multiplier. The reverse conversion (1 tsp = 0.001302083 gal) is on the Teaspoons to US gallons page.
Related conversions
Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.