Convert Grain to Seer (Ser)
Convert grains to seers (ser) instantly. 1 grain = 6.944443e-5 seer (ser) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Seer (Ser) to Grain converter for the reverse conversion.
Units explained
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.
Seer (Ser)
The seer (ser) equals about 933 grams, or eighty tola (close to one kilogram).
From Hindi/Urdu 'ser', a major pre-metric trade weight.
Historical grain, milk, and produce trade across South Asia.
Standardized in British India; aligned near 1 kg after metrication.
Grain to Seer (Ser) 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 grains and seers (ser):
To convert grains to seers (ser), multiply the value in grains by 6.944443e-5. To reverse, multiply seers (ser) by 14400.0021605305.
How to use this converter
Type a value into the calculator. The result in seers (ser) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Seer (Ser) to Grain converter for the reverse direction.
Step-by-step: convert grains to seers (ser)
- Write down the value in grains (gr).
- Multiply that value by the factor 6.944443e-5.
- The product is the equivalent value in seers (ser) (seer).
- To reverse, multiply the seer (ser) value by 14400.0021605305.
Worked examples
Example 1 — Convert 1 gr to seer:
1 × 6.944443e-5 = 6.944443e-5 seer
Example 2 — Convert 100 gr to seer:
100 × 6.944443e-5 = 0.0069444434 seer
Real-world example — From microscopic to macroscopic
A million grains equals exactly one seer (ser). This kind of conversion appears in microfluidics, where total channel length is given in seers (ser) but feature widths are in grains.
1000000 gr × 6.944443e-5 = 69.4444340252 seer
Real-world example — Macro-scale buildup
A million grains equals exactly one seer (ser) — the conversion that bridges microscale features and macroscale objects in microfluidic, biomedical, and semiconductor packaging design.
1000000 gr × 6.944443e-5 = 69.4444340252 seer
Real-world example — Quarter-meter measurement reference
A 250,000-grain length equals 0.25 seers (ser) — useful for comparing supply-chain spec sheets where some lengths are quoted in the smaller unit and some in the larger.
250000 gr × 6.944443e-5 = 17.3611085063 seer
Grain to Seer (Ser) conversion table
Standard reference values for converting grains to seers (ser):
| Grain [gr] | Seer (Ser) [seer] |
|---|---|
| 0.01 | 6.944443e-7 |
| 0.1 | 6.944443e-6 |
| 1 | 6.944443e-5 |
| 2 | 0.0001388889 |
| 3 | 0.0002083333 |
| 4 | 0.0002777777 |
| 5 | 0.0003472222 |
| 10 | 0.0006944443 |
| 20 | 0.0013888887 |
| 30 | 0.002083333 |
| 40 | 0.0027777774 |
| 50 | 0.0034722217 |
| 100 | 0.0069444434 |
| 500 | 0.034722217 |
| 1000 | 0.069444434 |
Frequently asked questions
How many seers (ser) is 1 grain?
How do I convert grains to seers (ser)?
How do I convert seers (ser) back to grains?
How many seers (ser) is 100 grains?
Popular weight unit conversions
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Metric / SI (18 units)
Avoirdupois (14 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 gr = 6.944443e-5 seer) 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.