US Quarts to Metric Teaspoons (qt to tsp)
1 US quart equals 189.2705892 metric teaspoons exactly.
How to convert US quarts to metric teaspoons
To convert US quarts to metric teaspoons, multiply the number of US quarts by 189.2705892. This factor is exact. To go the other way, multiply metric teaspoons by 0.005283441047 (rounded).
metric teaspoons = US quarts × 189.2705892
Example: 10 US quarts = 1,892.705892 metric teaspoons.
Pints, quarts, gallons and fluid ounces differ between the US and the UK. Units are labeled 'US' or 'imperial' to avoid confusion.
About these units
US Quart (qt)
One quarter of a US gallon, 0.946353 L (32 US fluid ounces).
Quart is a word about fractions. It comes from Latin quartus, meaning one fourth, by way of French, and it was always meant to be a quarter of a gallon. Since gallons differed over the centuries, quarts did too. The US liquid quart is 57.75 cubic inches, about 0.9464 liters, while the imperial quart is a quarter of the 4.54609-liter imperial gallon, about 1.1365 liters. Canadian French even uses pinte for the imperial quart.
Older English trade also produced odd cousins. The Winchester quart was a big bottle holding two imperial quarts, later metricated to 2.5 liters, and the reputed quart of about 0.758 liters was once a standard British wine bottle size. In the United States a quart still means a carton of milk or cream or a tub of ice cream. Americans also use a separate dry quart, about 1.101 liters, for berries, so a quart of strawberries is larger than a quart of milk.
1 US quart = 0.946352946 liters (exactly).
Sources: Wikipedia: Quart; Wikipedia: Gallon; NIST SP 811, Appendix B.8: conversion factors for volume
Metric Teaspoon (tsp)
Exactly 5 mL, used in most countries.
Five milliliters is the metric teaspoon, a figure so tidy that it has become the working definition for medicine and food labels. The traditional British teaspoon was an imperial fluid drachm, one eighth of an imperial fluid ounce, about 3.55 milliliters, and the American one was 4.93 mL. US nutrition labeling law now defines a teaspoon as exactly 5 milliliters.
The 5 mL teaspoon matters most when dosing medicine. Kitchen spoons vary widely, with one Greek survey of 71 household teaspoons finding volumes from 2.5 to 7.3 mL, so measuring spoons, syringes and calibrated cups are the safer tools. It also anchors the metric cooking system: three teaspoons make a 15 mL tablespoon, and fifty fit in a 250 mL metric cup. Australia keeps a 5 mL teaspoon but counts four of them in its larger 20 mL tablespoon.
1 metric teaspoon = 0.005 liters (exactly).
Sources: Wikipedia: Teaspoon; 21 CFR 101.9: nutrition labeling household measures; Wikipedia: Metric cup
Related conversions
- Metric teaspoons to US quarts (reverse)
- US quarts to liters
- US quarts to milliliters
- US quarts to US gallons
- US quarts to US cups
- US quarts to US fluid ounces
- US quarts to cubic meters
- US quarts to cubic centimeters
- US quarts to US pints
- US quarts to US tablespoons
- US quarts to US teaspoons
- US quarts to metric cups
- US quarts to metric tablespoons
- Liters to metric teaspoons
- Milliliters to metric teaspoons
- US gallons to metric teaspoons
- US cups to metric teaspoons
- US fluid ounces to metric teaspoons
- Cubic meters to metric teaspoons
- Cubic centimeters to metric teaspoons
- US pints to metric teaspoons
- US tablespoons to metric teaspoons
- US teaspoons to metric teaspoons
- Metric cups to metric teaspoons
- Metric tablespoons to metric teaspoons
See all volume units.