dry volume
How much is a biblical seah?
A seah was a dry measure of roughly 7.3 litres; three seahs made an ephah.
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.
seah — A seah was a dry measure of roughly 7.3 litres; three seahs made an ephah.
Flour mass depends on density and packing, so this tool converts container volume rather than kilograms of flour.
Direct answer
1 seah ≈ 7.0–7.5 L ≈ 1.85–1.98 US gal · 1.54–1.65 Imp gal
Flour mass depends on density and packing, so this tool converts container volume rather than kilograms of flour.
Biblical ratio: 3 seahs = 1 ephah.
| Amount | Metric range | US customary / imperial range |
|---|---|---|
| 1 seah | 7.0–7.5 L | 1.85–1.98 US gal · 1.54–1.65 Imp gal |
| 2 seahs | 14–15 L | 3.7–3.96 US gal · 3.08–3.3 Imp gal |
| 5 seahs | 35–37.5 L | 9.25–9.91 US gal · 7.7–8.25 Imp gal |
| 10 seahs | 70–75 L | 18.49–19.81 US gal · 15.4–16.5 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 seahs
How much is one seah today?
7.0–7.5 L, or 1.85–1.98 US gal · 1.54–1.65 Imp gal, in this site's selected approximate system. Flour mass depends on density and packing, so this tool converts container volume rather than kilograms of flour.
Is the seah 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.
ephah
An ephah was a major Hebrew dry measure, represented here as about 22 litres.
lethech
A lethech was a large dry measure, commonly taken as five ephahs or half a homer.