Convert Ratti to Atomic Mass Unit
Convert rattis to atomic mass unit instantly. 1 ratti = 7.316896e+22 atomic mass unit — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Atomic Mass Unit to Ratti converter for the reverse conversion.
Units explained
Ratti
The ratti equals about 0.1215 gram, the smallest traditional South Asian weight.
Based on the seed of the Gunja plant (Abrus precatorius), or 'raktika' in Sanskrit.
Gemstones and gold in Indian and South Asian jewelry.
One of the oldest weight units of the Indian subcontinent, later standardized.
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.
Ratti 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 rattis and atomic mass unit:
To convert rattis to atomic mass unit, multiply the value in rattis by 7.316896e+22. To reverse, multiply atomic mass unit by 1.3667e-23.
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 Ratti converter for the reverse direction.
Step-by-step: convert rattis to atomic mass unit
- Write down the value in rattis (ratti).
- Multiply that value by the factor 7.316896e+22.
- The product is the equivalent value in atomic mass unit (u).
- To reverse, multiply the atomic mass unit value by 1.3667e-23.
Worked examples
Example 1 — Convert 1 ratti to u:
1 × 7.316896e+22 = 7.316896e+22 u
Example 2 — Convert 100 ratti to u:
100 × 7.316896e+22 = 7.316896e+24 u
Real-world example — Mid-micron to nanometer
3 rattis equals 3,000 atomic mass unit — useful when relating mid-infrared wavelengths (typically quoted in microns) to nanometer-scale visible-light wavelength tables.
3 ratti × 7.316896e+22 = 2.195069e+23 u
Real-world example — From microns to sub-micron features
One ratti equals one thousand atomic mass unit — the conversion semiconductor designers do constantly when comparing mask feature dimensions to actual transistor gate lengths.
1 ratti × 7.316896e+22 = 7.316896e+22 u
Real-world example — Infrared to visible-spectrum mapping
A 10-ratti thermal infrared wavelength corresponds to a much larger number in atomic mass unit, the unit favoured for ultraviolet and visible-light specifications.
10 ratti × 7.316896e+22 = 7.316896e+23 u
Ratti to Atomic Mass Unit conversion table
Standard reference values for converting rattis to atomic mass unit:
| Ratti [ratti] | Atomic Mass Unit [u] |
|---|---|
| 0.01 | 7.316896e+20 |
| 0.1 | 7.316896e+21 |
| 1 | 7.316896e+22 |
| 2 | 1.463379e+23 |
| 3 | 2.195069e+23 |
| 4 | 2.926758e+23 |
| 5 | 3.658448e+23 |
| 10 | 7.316896e+23 |
| 20 | 1.463379e+24 |
| 30 | 2.195069e+24 |
| 40 | 2.926758e+24 |
| 50 | 3.658448e+24 |
| 100 | 7.316896e+24 |
| 500 | 3.658448e+25 |
| 1000 | 7.316896e+25 |
Frequently asked questions
How many atomic mass unit is 1 ratti?
How do I convert rattis to atomic mass unit?
How do I convert atomic mass unit back to rattis?
How many atomic mass unit is 100 rattis?
Popular weight unit conversions
Convert Ratti to other weight units
Show all Ratti conversions
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 ratti = 7.316896e+22 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.