Milliliters to Tierces (mL to tierce)

1 milliliter equals 0.00000628981077 tierces (rounded).

1 milliliter = 0.00000628981077 tierces

How to convert milliliters to tierces

To convert milliliters to tierces, multiply the number of milliliters by 0.00000628981077. The factor is rounded to 10 significant digits. To go the other way, multiply tierces by 158,987.2949 (rounded).

tierces = milliliters × 0.00000628981077

Example: 10 milliliters = 0.0000628981077 tierces.

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

Milliliter (mL)

Metric (SI)Current unit

One thousandth of a liter, or exactly 1 cubic centimeter. Used for medicine, cooking and small containers.

Milliliters inherit everything from the liter, since the prefix simply means one thousandth. Because the liter is a cubic decimeter, a milliliter works out to exactly one cubic centimeter, a coincidence the metric system built in on purpose so that volume, length and mass interlock. One milliliter of water has a mass of about one gram, so a dosing syringe, a kitchen scale and a measuring jug can all be checked against one another.

Today milliliters dominate wherever small amounts must be measured precisely: medicine, flavorings, perfume, shampoo and the fine print on drink labels. Spelling is a mild regional split, with uppercase mL preferred in the United States, Canada and Australia and lowercase ml common in the UK and Europe. For scale, a US teaspoon is just under 5 mL, a US tablespoon is about 14.8 mL, and the US nutrition-label cup is exactly 240 mL, so one such cup is 240 of these tiny units.

1 milliliter = 0.001 liters (exactly).

Sources: Wikipedia: Litre; NIST SP 811, Appendix B.8: conversion factors for volume; 21 CFR 101.9: nutrition labeling household measures

Tierce (tierce)

US customaryHistorical unit (no longer in standard use)

42 US gallons (159 L), a third of a tun. The size of a standard oil barrel.

Tierce is French for a third, and the cask earned the name as a third of a wine pipe, holding 42 wine gallons. Wikipedia credits a definition under Richard III with fixing the wine tierce at that size, and by around 1700 it was a standard shipping container for many goods in the English colonies, not only wine.

Its best known afterlife is in the oil fields. Pennsylvania producers, who started after the Drake well of 1859, first used whatever barrels they could find, including 40 and 45 gallon ones. Around 1866 they settled on the wine tierce, two gallons larger than a standard whisky barrel, and the 42 gallon figure was formally standardised by 1872 and adopted by federal agencies in 1882.

In US gallons the tierce is about 159 litres (158.99 L as used here), and the imperial equivalent of 35 gallons is nearly identical at 159.1 litres. That coincidence is why the unit lives on in the oil barrel, still quoted in petroleum markets even though no one ships crude in wooden casks of that size.

1 tierce = 158.9872949 liters (approximately).

Sources: Wikipedia: Barrel (unit); Wikipedia: Tun (unit)

Related conversions

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