Mass and Weight · Unit Converter

Convert Dram (apothecary/troy) to Tola

Convert drams (apothecary/troy) to tolas instantly. 1 dram (apothecary/troy) = 0.3333333333 tola — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tola to Dram (apothecary/troy) 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

Troy & Apothecary

Dram (apothecary/troy)

What is a dram (apothecary/troy)?

The apothecary (troy) dram equals one-eighth of a troy ounce, about 3.888 grams.

Origin of the dram (apothecary/troy)

From the apothecaries' system rooted in the Greek 'drachma'.

Where it is used

Historical pharmacy and medicine compounding.

When and where it was developed

Part of the apothecaries' system of weights used through the 19th century.

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.

Dram (apothecary/troy) 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 drams (apothecary/troy) and tolas:

1 dr ap = 0.3333333333 tola
1 tola = 3 dr ap

To convert drams (apothecary/troy) to tolas, multiply the value in drams (apothecary/troy) by 0.3333333333. To reverse, multiply tolas by 3.

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 Dram (apothecary/troy) converter for the reverse direction.

Step-by-step: convert drams (apothecary/troy) to tolas

  1. Write down the value in drams (apothecary/troy) (dr ap).
  2. Multiply that value by the factor 0.3333333333.
  3. The product is the equivalent value in tolas (tola).
  4. To reverse, multiply the tola value by 3.

Worked examples

Example 1 — Convert 1 dr ap to tola:
1 × 0.3333333333 = 0.3333333333 tola

Example 2 — Convert 100 dr ap to tola:
100 × 0.3333333333 = 33.3333333333 tola

Real-world example — Postcard and small-object dimensions

A postcard is about 5 drams (apothecary/troy) wide. Converting to tolas is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 dr ap × 0.3333333333 = 1.6666666667 tola

Real-world example — Ruler-scale measurements

A 30-dram (apothecary/troy) school ruler converts cleanly to tolas — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 dr ap × 0.3333333333 = 10 tola

Real-world example — Hardware-scale dimensions

A 10-dram (apothecary/troy) fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between drams (apothecary/troy) and tolas daily when mixing metric and imperial tools.

10 dr ap × 0.3333333333 = 3.3333333333 tola

Dram (apothecary/troy) to Tola conversion table

Standard reference values for converting drams (apothecary/troy) to tolas:

Dram (apothecary/troy) [dr ap]Tola [tola]
0.010.0033333333
0.10.0333333333
10.3333333333
20.6666666667
31
41.3333333333
51.6666666667
103.3333333333
206.6666666667
3010
4013.3333333333
5016.6666666667
10033.3333333333
500166.6666666667
1000333.3333333333

Frequently asked questions

How many tolas is 1 dram (apothecary/troy)?
1 dram (apothecary/troy) equals 0.3333333333 tola.
How do I convert drams (apothecary/troy) to tolas?
Multiply the value in drams (apothecary/troy) by 0.3333333333 to get tolas.
How do I convert tolas back to drams (apothecary/troy)?
Multiply the value in tolas by 3, or use the Tola to Dram (apothecary/troy) converter.
How many tolas is 100 drams (apothecary/troy)?
100 drams (apothecary/troy) equals 33.3333333333 tolas, because 100 × 0.3333333333 = 33.3333333333.

Convert Dram (apothecary/troy) to other weight units

Show all Dram (apothecary/troy) conversions
Metric / SI (18 units)
Dram (apothecary/troy) to Attogram (ag) Dram (apothecary/troy) to Femtogram (fg) Dram (apothecary/troy) to Picogram (pg) Dram (apothecary/troy) to Nanogram (ng) Dram (apothecary/troy) to Microgram (µg) Dram (apothecary/troy) to Milligram (mg) Dram (apothecary/troy) to Centigram (cg) Dram (apothecary/troy) to Decigram (dg) Dram (apothecary/troy) to Gram (g) Dram (apothecary/troy) to Dekagram (dag) Dram (apothecary/troy) to Hectogram (hg) Dram (apothecary/troy) to Kilogram (kg) Dram (apothecary/troy) to Quintal (metric) (q) Dram (apothecary/troy) to Metric Ton (t) Dram (apothecary/troy) to Gigagram (Gg) Dram (apothecary/troy) to Teragram (Tg) Dram (apothecary/troy) to Petagram (Pg) Dram (apothecary/troy) to Exagram (Eg)
Avoirdupois (15 units)
Dram (apothecary/troy) to Grain (gr) Dram (apothecary/troy) to Dram (avoirdupois) (dr) Dram (apothecary/troy) to Ounce (oz) Dram (apothecary/troy) to Pound (lb) Dram (apothecary/troy) to Clove (clove) Dram (apothecary/troy) to Stone (US) (st) Dram (apothecary/troy) to Stone (UK) (st) Dram (apothecary/troy) to Quarter (US) (qr) Dram (apothecary/troy) to Quarter (UK) (qr) Dram (apothecary/troy) to Hundredweight (US) (cwt) Dram (apothecary/troy) to Hundredweight (UK) (cwt) Dram (apothecary/troy) to Wey (wey) Dram (apothecary/troy) to Kilopound (kip) (kip) Dram (apothecary/troy) to Ton (short, US) (sh tn) Dram (apothecary/troy) to Ton (long, UK) (long tn)
Troy & Apothecary (9 units)
Dram (apothecary/troy) to Point (1/100 carat) (pt) Dram (apothecary/troy) to Carat (metric) (ct) Dram (apothecary/troy) to Scruple (apothecary) (s ap) Dram (apothecary/troy) to Pennyweight (dwt) Dram (apothecary/troy) to Momme (mom) Dram (apothecary/troy) to Mace (mace) Dram (apothecary/troy) to Troy Ounce (oz t) Dram (apothecary/troy) to Tael (tael) Dram (apothecary/troy) to Pound (troy/apothecary) (lb t)
Indian / South Asian (6 units)
Dram (apothecary/troy) to Ratti (ratti) Dram (apothecary/troy) to Masha (masha) Dram (apothecary/troy) to Tola (tola) Dram (apothecary/troy) to Chittack (Chatank) (chittack) Dram (apothecary/troy) to Seer (Ser) (seer) Dram (apothecary/troy) to Maund (Mann) (maund)
Scientific / Atomic (9 units)
Dram (apothecary/troy) to Electron Mass (rest) (me) Dram (apothecary/troy) to MeV/c2 (MeV/c²) Dram (apothecary/troy) to Muon Mass (mµ) Dram (apothecary/troy) to Atomic Mass Unit (u) Dram (apothecary/troy) to Proton Mass (mp) Dram (apothecary/troy) to Neutron Mass (mn) Dram (apothecary/troy) to Deuteron Mass (md) Dram (apothecary/troy) to Carbon-12 Atom Mass (C-12) Dram (apothecary/troy) to Planck Mass (mP)
Astronomical (4 units)
Dram (apothecary/troy) to Lunar Mass (Moon) (M☾) Dram (apothecary/troy) to Earth's Mass (M⊕) Dram (apothecary/troy) to Jupiter Mass (MJ) Dram (apothecary/troy) to Sun's Mass (M☉)
Biblical / Ancient (14 units)
Dram (apothecary/troy) to Lepton (Biblical Roman) (lepton) Dram (apothecary/troy) to Quadrans (Biblical Roman) (quadrans) Dram (apothecary/troy) to Assarion (Biblical Roman) (assarion) Dram (apothecary/troy) to Gerah (Biblical Hebrew) (gerah) Dram (apothecary/troy) to Drachma (Biblical Greek) (drachma) Dram (apothecary/troy) to Denarius (Biblical Roman) (denarius) Dram (apothecary/troy) to Bekan (Biblical Hebrew) (bekah) Dram (apothecary/troy) to Didrachma (Biblical Greek) (didrachma) Dram (apothecary/troy) to Shekel (Biblical Hebrew) (shekel) Dram (apothecary/troy) to Tetradrachma (Biblical Greek) (tetra) Dram (apothecary/troy) to Mina (Biblical Greek) (mina) Dram (apothecary/troy) to Mina (Biblical Hebrew) (mina) Dram (apothecary/troy) to Talent (Biblical Greek) (talent) Dram (apothecary/troy) to Talent (Biblical Hebrew) (talent)
Force / Engineering (5 units)
Dram (apothecary/troy) to Poundal (pdl) Dram (apothecary/troy) to Ton (assay) (US) (AT) Dram (apothecary/troy) to Ton (assay) (UK) (AT) Dram (apothecary/troy) to Kilogram-force square second/meter (hyl) Dram (apothecary/troy) to Slug (slug)

Sources & references

Conversion factor (1 dr ap = 0.3333333333 tola) verified against the following authoritative sources:

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