Detective Comics #378 (1968) — Comic Book Value

Detective Comics

What Detective Comics #378 (1968) is worth — ungraded and CGC graded (6.0, 8.0).

Detective Comics #378 (1968) value — Ungraded $19 · Grade 6.0 $90 · Grade 8.0 $108. Prices updated July 2026.

Series · Detective Comics
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Value by grade
$19
Ungraded
4.7×
$90
Grade 6.0
5.7×
$108
Grade 8.0

Real sold prices per grade — the Grade 8.0 premium on this card is 5.7× raw.

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Item details

Series
Detective Comics

Detective Comics #378 (1968) comic value

An ungraded copy of Detective Comics #378 (1968) averages around $19. A CGC 6.0 runs about $90, and a CGC 8.0 commands $108.

What drives the price

Grade is everything in comics — spine ticks, page color, and restoration decide the number, and the jump from raw to high grade can be 10×+. Key issues (first appearances, origins, deaths) carry the biggest premiums, and early printings beat reprints.

Price guide

Sold values by grade vs. what sellers ask today

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ConditionValueBased on
Ungraded$19eBay sold comps
Grade 6.0$90eBay sold comps
Grade 8.0$108eBay sold comps

Frequently asked questions

What is the starting price for Detective Comics #378?
The ungraded version of Detective Comics #378 is currently priced around $20.
How much is a high-grade copy worth?
A Grade 8.0 copy of Detective Comics #378 is valued at $108.
What is the price difference between ungraded and graded copies?
The price difference is substantial, with ungraded copies starting at $20 compared to $90 for a Grade 6.0.

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