Gallon (US) to Teaspoon (US) Converter
Volume · unit-converter
Convert Gallon (US) to Teaspoon (US) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use liter-based factors (US fluid measures, imperial UK units, SI cubic meters).
Calculator
From: Gallon (US) (gal)
To: Teaspoon (US) (tsp)
About Gallon (US)
The US liquid gallon is defined as 231 cubic inches (about 3.78541 liters). US recipes, fuel economy, and retail liquids typically use US gallons.
About Teaspoon (US)
The US teaspoon is 1/6 US fluid ounce (about 4.9289 ml). US recipes use teaspoons for spices and small liquid amounts.
How to convert gallons (us) to teaspoons (us)
1 gallon (us) is equal to 767.99999918846345 teaspoon (us):
1 gal = (3.78541178 L ÷ 0.00492892159375 L) tsp = 767.99999918846345 tsp
Each gallon (us) is defined as 3.78541178 L and each teaspoon (us) as 0.00492892159375 L, so one gal equals 3.78541178 ÷ 0.00492892159375 tsp = 767.99999918846345 tsp.
Let V(gal) be the numeric value of the same volume measured in Gallon (US) (gal), and V(tsp) the value in Teaspoon (US) (tsp). Then:
V(tsp) = V(gal) × (3.78541178 / 0.00492892159375)
Equivalently, divide by how many gal fit into one tsp (liters per tsp divided by liters per gal):
V(tsp) = V(gal) ÷ 0.00130208333471
Or: teaspoon (us) = gallon (us) ÷ 0.00130208333471
Examples
Example #1: Convert 20 gal to teaspoon (us)
20 gal = 20 gal × (3.78541178/0.00492892159375) tsp = 15359.9999838 tsp
20 gal = 20 gal ÷ 0.00130208333471 = 15359.9999838 tsp
Example #2: Convert 50 gal to teaspoon (us)
50 gal = 50 gal × (3.78541178/0.00492892159375) tsp = 38399.9999594 tsp
50 gal = 50 gal ÷ 0.00130208333471 = 38399.9999594 tsp
Summary
To convert Gallon (US) to Teaspoon (US), multiply the value in gal by the ratio of liters per gal divided by liters per tsp. Equivalently: value_tsp = value_gal × (3.78541178 / 0.00492892159375). Numerically, 1 gal equals 767.9999991884634 tsp.
Relationship context
Both units are US customary fluid / volume in this tool’s grouping. Conversions use fixed liter equivalents, so factors are consistent for cooking, engineering, and cross-checking labels. The factor from Gallon (US) to Teaspoon (US) is 7.680000e+2 (1 gal = 767.9999991884634 tsp).
Conversion tables
| Gallon (US) (gal) | Teaspoon (US) (tsp) |
|---|---|
| 0.1 | 76.7999999188 |
| 1 | 767.999999188 |
| 2 | 1,535.99999838 |
| 3 | 2,303.99999757 |
| 4 | 3,071.99999675 |
| 5 | 3,839.99999594 |
| 6 | 4,607.99999513 |
| 7 | 5,375.99999432 |
| 8 | 6,143.99999351 |
| 9 | 6,911.9999927 |
| Gallon (US) (gal) | Teaspoon (US) (tsp) |
|---|---|
| 10 | 7,679.99999188 |
| 20 | 15,359.9999838 |
| 30 | 23,039.9999757 |
| 40 | 30,719.9999675 |
| 50 | 38,399.9999594 |
| 60 | 46,079.9999513 |
| 70 | 53,759.9999432 |
| 80 | 61,439.9999351 |
| 90 | 69,119.999927 |
| 100 | 76,799.9999188 |
Conversions outside the hub list
The grid on the category page lists hub units only. These pairs include at least one unit outside that hub set (same tools: formulas and tables on each page).
- us-gallon to uk-gallonGallon (US) to Gallon (UK)
- us-gallon to uk-quartGallon (US) to Quart (UK)
- us-gallon to uk-pintGallon (US) to Pint (UK)
- us-gallon to us-quartGallon (US) to Quart (US)
- us-gallon to us-pintGallon (US) to Pint (US)
- us-gallon to uk-cupGallon (US) to Cup (UK)
- us-gallon to us-cupGallon (US) to Cup (US)
- us-gallon to uk-fluid-ounceGallon (US) to Fluid Ounce (UK)
- us-gallon to uk-tablespoonGallon (US) to Tablespoon (UK)
- us-gallon to uk-teaspoonGallon (US) to Teaspoon (UK)
- uk-gallon to us-teaspoonGallon (UK) to Teaspoon (US)
- uk-quart to us-teaspoonQuart (UK) to Teaspoon (US)