Ungraded vs Grade 8.0 Superman #18 (1942): price difference
Superman #18 (1942) value — Ungraded $631 vs Grade 8.0 $4080. Grade 8.0 sells for 6.47× Ungraded (+547%). Prices updated September 2026.
Medians of real sold listings per grade, updated September 2026 — how we compute values.
Grade 8.0 sells for 6.47× (+547%) the Ungraded price — a $3,449 difference per comic.
Grade 6.0 sells for 5.45× (+445%) the Ungraded price — a $2,809 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Superman #18 (1942), the jump from Ungraded to Grade 8.0 is worth $3,449 (6.47×) — if your copy grades at the top, that premium can cover the fee. A grade below the top one changes the math, so run your exact numbers first.
Run the grading break-even math →Values are estimates from real sales data — not appraisals or offers. Some links earn JunkPal a commission at no cost to you (disclosure).