I would start with 3.5 qts. That will probably be good, but it might take 3.75 - 4 qts.
3.8 quarts
Per Honda Service Center in Torrance, CA 3.5 quarts.
A 2003 Honda civic si needs five quarts of oil.
2.9 after drain, 6.2 total capacity
4.7 quarts
3.4 quarts
3.8 quarts
4.6 Quarts of oil!
The exact oil capacity for a 1992-1995 Honda Civic DX/LX is 3.7 quarts.
Per Honda Service Center in Torrance, CA 3.5 quarts.
3.5 guarts
4.2 Quarts. But 4 will do just fine.