Convert Teaspoons to Acre-Feet
Convert Teaspoons (tsp) to Acre-Feet (ac ft) instantly and accurately.
Conversion Formula
ac ft = tsp × 3.995941767e-9
About Teaspoons
A teaspoon (tsp) is a US customary and cooking measurement unit equal to 1/3 of a tablespoon - approximately 4.929 mL. It is fundamental to cooking and baking worldwide: nearly every recipe in US-published cookbooks uses teaspoons as the basic small measurement for spices, baking powder, vanilla, and other minor ingredients. In medicine, over-the-counter liquid medications (especially children's doses) are measured in teaspoons, with 5 mL the standard metric equivalent used on US medication labels. Three teaspoons make one tablespoon, and six teaspoons make one fluid ounce.
About Acre-Feet
An acre-foot (ac ft) = the volume covering 1 acre to 1 ft depth ≈ 1,233.5 m³ (325,851 US gal). Almost exclusively used in US water resource management. California's Lake Shasta: 4.55 million ac ft at capacity. A typical US household uses ~0.5-1 ac ft/year. Water rights on the Colorado and Sacramento rivers are traded in acre-feet. 1 ac ft ≈ 1,233.5 m³.
Quick Reference Table
| Teaspoons (tsp) | Acre-Feet (ac ft) |
|---|---|
| 1 tsp | 3.996 × 10-9 ac ft |
| 2 tsp | 7.992 × 10-9 ac ft |
| 5 tsp | 1.998 × 10-8 ac ft |
| 10 tsp | 3.996 × 10-8 ac ft |
| 25 tsp | 9.99 × 10-8 ac ft |
| 50 tsp | 1.998 × 10-7 ac ft |
| 100 tsp | 3.996 × 10-7 ac ft |