Convert Tola to Atomic Mass Unit
Convert tolas to atomic mass unit instantly. 1 tola = 7.024102e+24 atomic mass unit — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Atomic Mass Unit to Tola converter for the reverse conversion.
Units explained
Tola
The tola equals 180 troy grains, about 11.6638 grams (three-eighths of a troy ounce).
From Sanskrit 'tula', meaning a balance or weighing.
The primary unit for gold and silver across India, Pakistan, and Nepal.
Fixed at 180 grains under British India in 1833.
Atomic Mass Unit
One unified atomic mass unit (u) is defined as 1/12 the mass of a carbon-12 atom, about 1.6605E-27 kg.
Introduced to give atomic and molecular masses convenient numerical values.
Atomic, molecular, and nuclear physics and chemistry.
The unified (carbon-12) scale was adopted by IUPAC and IUPAP in 1960-1961.
Tola to Atomic Mass Unit 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 atomic mass unit:
To convert tolas to atomic mass unit, multiply the value in tolas by 7.024102e+24. To reverse, multiply atomic mass unit by 1.42367e-25.
How to use this converter
Type a value into the calculator. The result in atomic mass unit updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Atomic Mass Unit to Tola converter for the reverse direction.
Step-by-step: convert tolas to atomic mass unit
- Write down the value in tolas (tola).
- Multiply that value by the factor 7.024102e+24.
- The product is the equivalent value in atomic mass unit (u).
- To reverse, multiply the atomic mass unit value by 1.42367e-25.
Worked examples
Example 1 — Convert 1 tola to u:
1 × 7.024102e+24 = 7.024102e+24 u
Example 2 — Convert 100 tola to u:
100 × 7.024102e+24 = 7.024102e+26 u
Real-world example — Small-scale to atomic-scale
One tola equals 10 million atomic mass unit — useful for physics curricula that relate everyday measurements to atomic and optical scales.
1 tola × 7.024102e+24 = 7.024102e+24 u
Real-world example — Centimeter to wavelength scale
One tola equals 10 million atomic mass unit. Physics curricula use this kind of conversion to relate everyday measurements to atomic and optical scales.
1 tola × 7.024102e+24 = 7.024102e+24 u
Tola to Atomic Mass Unit conversion table
Standard reference values for converting tolas to atomic mass unit:
| Tola [tola] | Atomic Mass Unit [u] |
|---|---|
| 0.01 | 7.024102e+22 |
| 0.1 | 7.024102e+23 |
| 1 | 7.024102e+24 |
| 2 | 1.40482e+25 |
| 3 | 2.107231e+25 |
| 4 | 2.809641e+25 |
| 5 | 3.512051e+25 |
| 10 | 7.024102e+25 |
| 20 | 1.40482e+26 |
| 30 | 2.107231e+26 |
| 40 | 2.809641e+26 |
| 50 | 3.512051e+26 |
| 100 | 7.024102e+26 |
| 500 | 3.512051e+27 |
| 1000 | 7.024102e+27 |
Frequently asked questions
How many atomic mass unit is 1 tola?
How do I convert tolas to atomic mass unit?
How do I convert atomic mass unit back to tolas?
How many atomic mass unit is 100 tolas?
Popular weight unit conversions
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Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (5 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 tola = 7.024102e+24 u) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.