Convert Ratti to Grain
Convert rattis to grains instantly. 1 ratti = 1.8750318292 grain — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Grain 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.
Grain
The grain (gr) equals 1/7000 of an avoirdupois pound, about 64.8 milligrams.
Based on the nominal mass of a single barley grain.
Ammunition and bullet mass, archery, and historical pharmacy.
Standardized through the English avoirdupois system and retained in 1959.
Ratti to Grain 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 grains:
To convert rattis to grains, multiply the value in rattis by 1.8750318292. To reverse, multiply grains by 0.5333242798.
How to use this converter
Type a value into the calculator. The result in grains updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Grain to Ratti converter for the reverse direction.
Step-by-step: convert rattis to grains
- Write down the value in rattis (ratti).
- Multiply that value by the factor 1.8750318292.
- The product is the equivalent value in grains (gr).
- To reverse, multiply the grain value by 0.5333242798.
Worked examples
Example 1 — Convert 1 ratti to gr:
1 × 1.8750318292 = 1.8750318292 gr
Example 2 — Convert 100 ratti to gr:
100 × 1.8750318292 = 187.5031829244 gr
Real-world example — Paper and film thicknesses
At the thickness of office paper (roughly 3 rattis), converting between sub-millimeter units is routine for packaging and printing buyers comparing quotes from metric and US suppliers.
3 ratti × 1.8750318292 = 5.6250954877 gr
Real-world example — Plastic-film thickness alternates
A 150-ratti plastic film converts cleanly to grains — useful for packaging buyers reconciling supplier datasheets across metric and US measurement systems.
150 ratti × 1.8750318292 = 281.2547743866 gr
Real-world example — Hair-width scale measurements
A 70-ratti measurement (about the diameter of a human hair) is the kind of value materials engineers regularly express in adjacent micro-scale units like grains for direct comparison across supplier datasheets.
70 ratti × 1.8750318292 = 131.2522280471 gr
Ratti to Grain conversion table
Standard reference values for converting rattis to grains:
| Ratti [ratti] | Grain [gr] |
|---|---|
| 0.01 | 0.0187503183 |
| 0.1 | 0.1875031829 |
| 1 | 1.8750318292 |
| 2 | 3.7500636585 |
| 3 | 5.6250954877 |
| 4 | 7.500127317 |
| 5 | 9.3751591462 |
| 10 | 18.7503182924 |
| 20 | 37.5006365849 |
| 30 | 56.2509548773 |
| 40 | 75.0012731698 |
| 50 | 93.7515914622 |
| 100 | 187.5031829244 |
| 500 | 937.515914622 |
| 1000 | 1875.031829244 |
Frequently asked questions
How many grains is 1 ratti?
How do I convert rattis to grains?
How do I convert grains back to rattis?
How many grains 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 = 1.8750318292 gr) 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.