Mass and Weight · Unit Converter

Convert Tola to Grain

Convert tolas to grains instantly. 1 tola = 180.0000277782 grain — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Grain to Tola converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Indian / South Asian

Tola

What is a tola?

The tola equals 180 troy grains, about 11.6638 grams (three-eighths of a troy ounce).

Origin of the tola

From Sanskrit 'tula', meaning a balance or weighing.

Where it is used

The primary unit for gold and silver across India, Pakistan, and Nepal.

When and where it was developed

Fixed at 180 grains under British India in 1833.

Avoirdupois

Grain

What is a grain?

The grain (gr) equals 1/7000 of an avoirdupois pound, about 64.8 milligrams.

Origin of the grain

Based on the nominal mass of a single barley grain.

Where it is used

Ammunition and bullet mass, archery, and historical pharmacy.

When and where it was developed

Standardized through the English avoirdupois system and retained in 1959.

Tola to Grain conversion formula

Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.

The relationship between tolas and grains:

1 tola = 180.0000277782 gr
1 gr = 0.0055555547 tola

To convert tolas to grains, multiply the value in tolas by 180.0000277782. To reverse, multiply grains by 0.0055555547.

How to use this converter

Type a value into the calculator. The result in grains updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Grain to Tola converter for the reverse direction.

Step-by-step: convert tolas to grains

  1. Write down the value in tolas (tola).
  2. Multiply that value by the factor 180.0000277782.
  3. The product is the equivalent value in grains (gr).
  4. To reverse, multiply the grain value by 0.0055555547.

Worked examples

Example 1 — Convert 1 tola to gr:
1 × 180.0000277782 = 180.0000277782 gr

Example 2 — Convert 100 tola to gr:
100 × 180.0000277782 = 18000.0027778249 gr

Real-world example — Adjacent small-scale precision

One tola equals 1,000 grains — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).

1 tola × 180.0000277782 = 180.0000277782 gr

Real-world example — Adjacent metric sub-units

One tola equals 1,000 grains. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.

1 tola × 180.0000277782 = 180.0000277782 gr

Tola to Grain conversion table

Standard reference values for converting tolas to grains:

Tola [tola]Grain [gr]
0.011.8000002778
0.118.0000027778
1180.0000277782
2360.0000555565
3540.0000833347
4720.000111113
5900.0001388912
101800.0002777825
203600.000555565
305400.0008333475
407200.00111113
509000.0013889125
10018000.0027778249
50090000.0138891247
1000180000.0277782494

Frequently asked questions

How many grains is 1 tola?
1 tola equals 180.0000277782 grain.
How do I convert tolas to grains?
Multiply the value in tolas by 180.0000277782 to get grains.
How do I convert grains back to tolas?
Multiply the value in grains by 0.0055555547, or use the Grain to Tola converter.
How many grains is 100 tolas?
100 tolas equals 18000.0027778249 grains, because 100 × 180.0000277782 = 18000.0027778249.

Convert Tola to other weight units

Show all Tola conversions
Metric / SI (18 units)
Tola to Attogram (ag) Tola to Femtogram (fg) Tola to Picogram (pg) Tola to Nanogram (ng) Tola to Microgram (µg) Tola to Milligram (mg) Tola to Centigram (cg) Tola to Decigram (dg) Tola to Gram (g) Tola to Dekagram (dag) Tola to Hectogram (hg) Tola to Kilogram (kg) Tola to Quintal (metric) (q) Tola to Metric Ton (t) Tola to Gigagram (Gg) Tola to Teragram (Tg) Tola to Petagram (Pg) Tola to Exagram (Eg)
Avoirdupois (15 units)
Tola to Grain (gr) Tola to Dram (avoirdupois) (dr) Tola to Ounce (oz) Tola to Pound (lb) Tola to Clove (clove) Tola to Stone (US) (st) Tola to Stone (UK) (st) Tola to Quarter (US) (qr) Tola to Quarter (UK) (qr) Tola to Hundredweight (US) (cwt) Tola to Hundredweight (UK) (cwt) Tola to Wey (wey) Tola to Kilopound (kip) (kip) Tola to Ton (short, US) (sh tn) Tola to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Tola to Point (1/100 carat) (pt) Tola to Carat (metric) (ct) Tola to Scruple (apothecary) (s ap) Tola to Pennyweight (dwt) Tola to Momme (mom) Tola to Mace (mace) Tola to Dram (apothecary/troy) (dr ap) Tola to Troy Ounce (oz t) Tola to Tael (tael) Tola to Pound (troy/apothecary) (lb t)
Indian / South Asian (5 units)
Tola to Ratti (ratti) Tola to Masha (masha) Tola to Chittack (Chatank) (chittack) Tola to Seer (Ser) (seer) Tola to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Tola to Electron Mass (rest) (me) Tola to MeV/c2 (MeV/c²) Tola to Muon Mass (mµ) Tola to Atomic Mass Unit (u) Tola to Proton Mass (mp) Tola to Neutron Mass (mn) Tola to Deuteron Mass (md) Tola to Carbon-12 Atom Mass (C-12) Tola to Planck Mass (mP)
Astronomical (4 units)
Tola to Lunar Mass (Moon) (M☾) Tola to Earth's Mass (M⊕) Tola to Jupiter Mass (MJ) Tola to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Tola to Lepton (Biblical Roman) (lepton) Tola to Quadrans (Biblical Roman) (quadrans) Tola to Assarion (Biblical Roman) (assarion) Tola to Gerah (Biblical Hebrew) (gerah) Tola to Drachma (Biblical Greek) (drachma) Tola to Denarius (Biblical Roman) (denarius) Tola to Bekan (Biblical Hebrew) (bekah) Tola to Didrachma (Biblical Greek) (didrachma) Tola to Shekel (Biblical Hebrew) (shekel) Tola to Tetradrachma (Biblical Greek) (tetra) Tola to Mina (Biblical Greek) (mina) Tola to Mina (Biblical Hebrew) (mina) Tola to Talent (Biblical Greek) (talent) Tola to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Tola to Poundal (pdl) Tola to Ton (assay) (US) (AT) Tola to Ton (assay) (UK) (AT) Tola to Kilogram-force square second/meter (hyl) Tola to Slug (slug)

Sources & references

Conversion factor (1 tola = 180.0000277782 gr) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.