Ungraded vs Grade 8.0 Adventure Comics #145 (1949): price difference
Adventure Comics #145 (1949) value — Ungraded $131 vs Grade 8.0 $660. Grade 8.0 sells for 5.04× Ungraded (+404%). Prices updated August 2026.
Medians of real sold listings per grade, updated August 2026 — how we compute values.
Grade 8.0 sells for 5.04× (+404%) the Ungraded price — a $529 difference per comic.
Grade 6.0 sells for 2.44× (+144%) the Ungraded price — a $188 difference per comic.
Should you get this comic graded?
Grading runs about $30 per comic all-in. On Adventure Comics #145 (1949), the jump from Ungraded to Grade 8.0 is worth $529 (5.04×) — 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).