Convert Teaspoon (UK) (tsp (UK)) to Acre-Inch (ac*in) instantly.
About these units
Teaspoon (UK) (tsp (UK))
The UK teaspoon is defined as 5 milliliters, a value adopted in modern culinary and medical standards. Historically, however, its size varied considerably, often ranging from 4 to 6 mL depending on household spoons, region, or era. The modern 5 mL standardization brought consistency to recipes, pharmaceutical dosing instructions, and food labeling. Because teaspoons were once everyday household items rather than calibrated instruments, the move toward fixed metric equivalents significantly improved recipe reliability and medical accuracy. Despite the shift to SI units, the teaspoon endures as a culturally intuitive volume measure used in cooking and oral medication dosing, tying contemporary practice to long-standing domestic traditions.
Acre-Inch (ac*in)
An acre-inch equals 1/12 of an acre-foot, representing the water required to cover one acre to a depth of one inch. Irrigation planners and farmers often use acre-inches to fine-tune watering schedules for crops. Because plants require precise hydration, the acre-inch allows for granular control of irrigation needed for soil management and crop health. Agronomists also use acre-inches to convert rainfall into usable water volume estimates for agricultural regions, linking meteorology with farm management.