Tola to Kilograms (tola to kg)

1 tola equals 0.0116638038 kilograms exactly.

1 tola = 0.0116638038 kilograms

How to convert tola to kilograms

To convert tola to kilograms, multiply the number of tola by 0.0116638038. This factor is exact. To go the other way, multiply kilograms by 85.73532418 (rounded).

kilograms = tola × 0.0116638038

Example: 10 tola = 0.116638038 kilograms.

About these units

Tola (tola)

Indian subcontinentTraditional unit (still used in some regions)

180 grains, about 11.6638 g. The traditional South Asian unit for gold and silver, still the basis of gold prices in India, Pakistan and Bangladesh.

Tola comes from a Sanskrit word for weighing, and the unit was traditionally the weight of 100 ratti seeds, the red-and-black seeds of the rosary pea used by Indian goldsmiths. Its weight differed from place to place. Akbar's coins were close to a tola, and Sher Shah Suri's rupee was about one percent lighter than the later British tola.

In 1833 Regulation VII of the British government in India fixed it at 180 troy grains, or about 11.6638 g, exactly three eighths of a troy ounce. The earlier Bengal sicca standard, one Murshidabad rupee, was about 179.67 grains, so this was more tidying up than change. A tola divided into 12 masha of 8 ratti each, and 80 tolas made a seer. Zanzibar's tola was lighter, around 11.34 g. India officially dropped it in 1956, yet gold is still sold by the tola, notably as 10-tola bars, across India, Pakistan, Bangladesh, Nepal and the Gulf.

1 tola = 0.0116638038 kilograms (exactly).

Sources: Wikipedia: Tola (unit); Wikipedia: Seer (unit)

Kilogram (kg)

Metric (SI)Current unit

The SI base unit of mass. Since 2019 it is defined by fixing the value of the Planck constant, replacing the old platinum-iridium cylinder in Paris.

Oddly for a base unit, the kilogram began life as a derived one. In 1793 revolutionary France defined the grave as the mass of one litre of water, and a decree of 1795 then replaced it with the kilogramme, a name built from the Greek khilioi (a thousand) and gramma, a Late Latin word for a small weight. In 1799 a platinum cylinder, the Kilogramme des Archives, became the physical standard, matching a cubic decimetre of water at its densest, around 4 degrees Celsius. In 1889 the metric community adopted a platinum-iridium cylinder made in 1879, the International Prototype of the Kilogram, nicknamed Le Grand K.

The kilogram is still the only SI base unit with a prefix in its name. Because SI forbids stacked prefixes, a millionth of a kilogram is a milligram rather than a microkilogram, so every mass prefix is attached to the gram. Calibrating every national standard against one object in a vault near Paris meant that all of them drifted relative to it, so in November 2018 member states voted to tie the kilogram to a fixed value of the Planck constant. The change took effect on 20 May 2019. Day to day nothing shifted, but the definition no longer depends on a single piece of metal.

The kilogram is the reference unit for weight & mass on this site.

Sources: NIST: Kilogram introduction (SI redefinition); Wikipedia: Kilogram

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