Convert Microgram to Tola
Convert micrograms to tolas instantly. 1 microgram = 8.573532e-8 tola — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tola to Microgram converter for the reverse conversion.
Units explained
Microgram
A microgram (ug) equals 10^-9 kilogram, or one-millionth of a gram.
From the SI prefix 'micro-' (from Greek 'mikros', small).
Trace nutrients, potent drug doses, and environmental contaminant levels.
The micro- prefix was incorporated into the SI in 1960.
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.
Microgram 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 micrograms and tolas:
To convert micrograms to tolas, multiply the value in micrograms by 8.573532e-8. To reverse, multiply tolas by 1.16638e+7.
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 Microgram converter for the reverse direction.
Step-by-step: convert micrograms to tolas
- Write down the value in micrograms (µg).
- Multiply that value by the factor 8.573532e-8.
- The product is the equivalent value in tolas (tola).
- To reverse, multiply the tola value by 1.16638e+7.
Worked examples
Example 1 — Convert 1 µg to tola:
1 × 8.573532e-8 = 8.573532e-8 tola
Example 2 — Convert 100 µg to tola:
100 × 8.573532e-8 = 8.573532e-6 tola
Real-world example — Sub-micron to millimeter
500,000 micrograms converts to a small everyday quantity in tolas — useful when relating optical-wavelength specifications to physical mounting hardware.
500000 µg × 8.573532e-8 = 0.0428676621 tola
Real-world example — From wavelengths to millimeter-scale objects
A value of one million micrograms sounds vast at the atomic scale but converts to a small everyday quantity in tolas — useful when relating optical-wavelength specifications to physical mounting hardware.
1000000 µg × 8.573532e-8 = 0.0857353242 tola
Microgram to Tola conversion table
Standard reference values for converting micrograms to tolas:
| Microgram [µg] | Tola [tola] |
|---|---|
| 0.01 | 8.573532e-10 |
| 0.1 | 8.573532e-9 |
| 1 | 8.573532e-8 |
| 2 | 1.714706e-7 |
| 3 | 2.57206e-7 |
| 4 | 3.429413e-7 |
| 5 | 4.286766e-7 |
| 10 | 8.573532e-7 |
| 20 | 1.714706e-6 |
| 30 | 2.57206e-6 |
| 40 | 3.429413e-6 |
| 50 | 4.286766e-6 |
| 100 | 8.573532e-6 |
| 500 | 4.286766e-5 |
| 1000 | 8.573532e-5 |
Frequently asked questions
How many tolas is 1 microgram?
How do I convert micrograms to tolas?
How do I convert tolas back to micrograms?
How many tolas is 100 micrograms?
Popular weight unit conversions
Convert Microgram to other weight units
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Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 µg = 8.573532e-8 tola) 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.