dry volume
How much is a biblical cor?
A cor was a large capacity measure commonly aligned with the homer at about ten ephahs.
Interactive reference
Convert a biblical measurement
Choose a unit and enter an amount to see a modern metric and labeled US customary or Imperial range.
cor — A cor was a large capacity measure commonly aligned with the homer at about ten ephahs.
The Greek koros and Hebrew kor appear in different settings; the range is a reading aid, not a claim that every container was calibrated alike.
Direct answer
1 cor ≈ 210–230 L ≈ 55.48–60.76 US gal · 46.19–50.59 Imp gal
The Greek koros and Hebrew kor appear in different settings; the range is a reading aid, not a claim that every container was calibrated alike.
Biblical ratio: 10 ephahs = 1 cor.
| Amount | Metric range | US customary / imperial range |
|---|---|---|
| 1 cor | 210–230 L | 55.48–60.76 US gal · 46.19–50.59 Imp gal |
| 2 cors | 420–460 L | 110.95–121.52 US gal · 92.39–101.19 Imp gal |
| 5 cors | 1,050–1,150 L | 277.38–303.8 US gal · 230.97–252.96 Imp gal |
| 10 cors | 2,100–2,300 L | 554.76–607.6 US gal · 461.93–505.93 Imp gal |
Primary reference: ESV Global Study Bible · Table of Weights and Measures ↗. The default system used for the representative estimates. The table says all equivalents are approximate and varied by time and place. Accessed October 10, 2026.
Bible passages using this unit
Questions about cors
How much is one cor today?
210–230 L, or 55.48–60.76 US gal · 46.19–50.59 Imp gal, in this site's selected approximate system. The Greek koros and Hebrew kor appear in different settings; the range is a reading aid, not a claim that every container was calibrated alike.
Is the cor conversion exact?
No. Biblical weights and measures varied by period, place, and standard. The displayed range is for reading scale and should not be treated as a calibrated surviving object.
Can I turn the result into a modern price or food weight?
Not without additional evidence. Metal price, purchasing power, material purity, grain density, and container packing are separate questions from unit conversion.
Related units
kab
A kab was a small dry-capacity measure, approximately one litre in the default reference system.
omer
An omer was one tenth of an ephah, the daily manna measure named in Exodus 16.
seah
A seah was a dry measure of roughly 7.3 litres; three seahs made an ephah.
ephah
An ephah was a major Hebrew dry measure, represented here as about 22 litres.