Mass and Weight · Unit Converter

Convert Grain to Tola

Convert grains to tolas instantly. 1 grain = 0.0055555547 tola — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tola to Grain 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

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.

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.

Grain to Tola 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 grains and tolas:

1 gr = 0.0055555547 tola
1 tola = 180.0000277782 gr

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

How to use this converter

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

Step-by-step: convert grains to tolas

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

Worked examples

Example 1 — Convert 1 gr to tola:
1 × 0.0055555547 = 0.0055555547 tola

Example 2 — Convert 100 gr to tola:
100 × 0.0055555547 = 0.5555554698 tola

Real-world example — Plastic film and laminate thickness

A 500-grain sheet is a typical spec for ID-card laminates and film overlays. Converting to tolas aligns the value with the unit most CAD systems and material datasheets prefer.

500 gr × 0.0055555547 = 2.7777773491 tola

Real-world example — Packaging gauge

A 4-grain plastic bag thickness is a common spec for grocery and freezer bags. Converting from grains to tolas is what packaging buyers do whenever they bridge US and metric supplier quotes.

4 gr × 0.0055555547 = 0.0222222188 tola

Grain to Tola conversion table

Standard reference values for converting grains to tolas:

Grain [gr]Tola [tola]
0.015.555555e-5
0.10.0005555555
10.0055555547
20.0111111094
30.0166666641
40.0222222188
50.0277777735
100.055555547
200.111111094
300.1666666409
400.2222221879
500.2777777349
1000.5555554698
5002.7777773491
10005.5555546982

Frequently asked questions

How many tolas is 1 grain?
1 grain equals 0.0055555547 tola.
How do I convert grains to tolas?
Multiply the value in grains by 0.0055555547 to get tolas.
How do I convert tolas back to grains?
Multiply the value in tolas by 180.0000277782, or use the Tola to Grain converter.
How many tolas is 100 grains?
100 grains equals 0.5555554698 tolas, because 100 × 0.0055555547 = 0.5555554698.

Convert Grain to other weight units

Show all Grain conversions
Metric / SI (18 units)
Grain to Attogram (ag) Grain to Femtogram (fg) Grain to Picogram (pg) Grain to Nanogram (ng) Grain to Microgram (µg) Grain to Milligram (mg) Grain to Centigram (cg) Grain to Decigram (dg) Grain to Gram (g) Grain to Dekagram (dag) Grain to Hectogram (hg) Grain to Kilogram (kg) Grain to Quintal (metric) (q) Grain to Metric Ton (t) Grain to Gigagram (Gg) Grain to Teragram (Tg) Grain to Petagram (Pg) Grain to Exagram (Eg)
Avoirdupois (14 units)
Grain to Dram (avoirdupois) (dr) Grain to Ounce (oz) Grain to Pound (lb) Grain to Clove (clove) Grain to Stone (US) (st) Grain to Stone (UK) (st) Grain to Quarter (US) (qr) Grain to Quarter (UK) (qr) Grain to Hundredweight (US) (cwt) Grain to Hundredweight (UK) (cwt) Grain to Wey (wey) Grain to Kilopound (kip) (kip) Grain to Ton (short, US) (sh tn) Grain to Ton (long, UK) (long tn)
Troy & Apothecary (10 units)
Grain to Point (1/100 carat) (pt) Grain to Carat (metric) (ct) Grain to Scruple (apothecary) (s ap) Grain to Pennyweight (dwt) Grain to Momme (mom) Grain to Mace (mace) Grain to Dram (apothecary/troy) (dr ap) Grain to Troy Ounce (oz t) Grain to Tael (tael) Grain to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Grain to Ratti (ratti) Grain to Masha (masha) Grain to Tola (tola) Grain to Chittack (Chatank) (chittack) Grain to Seer (Ser) (seer) Grain to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Grain to Electron Mass (rest) (me) Grain to MeV/c2 (MeV/c²) Grain to Muon Mass (mµ) Grain to Atomic Mass Unit (u) Grain to Proton Mass (mp) Grain to Neutron Mass (mn) Grain to Deuteron Mass (md) Grain to Carbon-12 Atom Mass (C-12) Grain to Planck Mass (mP)
Astronomical (4 units)
Grain to Lunar Mass (Moon) (M☾) Grain to Earth's Mass (M⊕) Grain to Jupiter Mass (MJ) Grain to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Grain to Lepton (Biblical Roman) (lepton) Grain to Quadrans (Biblical Roman) (quadrans) Grain to Assarion (Biblical Roman) (assarion) Grain to Gerah (Biblical Hebrew) (gerah) Grain to Drachma (Biblical Greek) (drachma) Grain to Denarius (Biblical Roman) (denarius) Grain to Bekan (Biblical Hebrew) (bekah) Grain to Didrachma (Biblical Greek) (didrachma) Grain to Shekel (Biblical Hebrew) (shekel) Grain to Tetradrachma (Biblical Greek) (tetra) Grain to Mina (Biblical Greek) (mina) Grain to Mina (Biblical Hebrew) (mina) Grain to Talent (Biblical Greek) (talent) Grain to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Grain to Poundal (pdl) Grain to Ton (assay) (US) (AT) Grain to Ton (assay) (UK) (AT) Grain to Kilogram-force square second/meter (hyl) Grain to Slug (slug)

Sources & references

Conversion factor (1 gr = 0.0055555547 tola) verified against the following authoritative sources:

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