COINVAC
Coin-collecting guides, grading know-how, and the calculators behind smarter numismatic decisions.
From estimating a coin's melt value and looking up a Sheldon grade to gauging rarity from mintage, tracking your collection's worth, checking silver against face value, and sizing storage, CoinVac pairs free hands-on numismatic calculators with practical guides and a richly illustrated museum. Collect smarter, grade with confidence.
Coin & Numismatic Tools
Free calculators for coin collectors — melt value, a grading scale guide, a mintage-rarity estimator, a collection value tracker, a silver-vs-face-value calculator, and a storage sizer.
Coin Melt Value Calculator
Estimate a coin's raw metal value from its weight and purity — converted to troy ounces and priced at gold, silver, platinum, or palladium spot, with an editable, dated default price
Coin Grading Scale Guide
Look up any Sheldon-scale grade from 1 to 70 and see its plain-language condition tier — Poor through Mint State / Proof — plus the full reference table
Mintage-Rarity Estimator
Combine a coin's original mintage with an estimated survival rate to get a rough surviving-population figure and a rarity band from Common to Extremely Rare
Coin Collection Value Tracker
List every coin you own with its quantity and estimated value to see a running total, each coin's extended value, and its share of the whole collection
Silver-vs-Face-Value Calculator
Check whether a coin's silver content beats its stamped face value — the classic "junk silver" question — with presets for common pre-1965 U.S. denominations
Coin Storage & Holder Sizer
Get a recommended 2x2 flip size and the closest standard coin tube for your coin's diameter, plus how many tubes a given quantity needs
Coins & Currency Museum
Wander an immersive museum of coins and currency — the struck metal of coinage and the mint, the mints and iconic designs behind famous coins, the gold, silver, and bullion behind the money, and the great coins of the ancient and historic world, each in its own gallery, so you can get to know the stories behind the money: how each coin and currency came to be, what makes it matter, and the role it plays in the history of collecting.
Tour the museum →From the Journal
Fresh guides on coin collecting — grading and mint marks, rare and historic coins, precious metals, and practical tips for building, storing, and valuing a collection with confidence.
What Is My Silver Quarter Actually Worth? Working Through Melt Value
A pre-1965 Washington quarter isn't worth 25 cents in silver terms. Here's the actual math behind melt value, worked through step by step with a real quarter.
22k, 18k, or 14k? Why Gold Purity Changes Everything About Melt Value
Two gold coins can weigh exactly the same and be worth wildly different amounts in melt value. Purity — not weight — is usually the number doing the real work.
Reading the Sheldon Scale: What Actually Separates MS-63 From MS-65
Two Mint State grades that sound almost identical can carry very different prices. Here's what a grader is actually looking at between MS-63 and MS-65 — and why it matters.
From Poor to Mint State: The 10 Coin-Grading Tiers, Explained
Poor, Good, Very Fine, About Uncirculated — coin-grading vocabulary sounds like a foreign language until you see what each tier is actually describing. Here's the full walk-through.
How Rare Is Your Coin, Really? Mintage vs. Survival Rate
A coin's original mintage figure is only half the rarity story. What survived the decades since is the number that actually matters -- and it's almost always much smaller.
Why a Coin With a Huge Mintage Can Still Be Rare Today
Millions struck doesn't mean millions survive. A look at the specific forces -- melting, hoarding, simple loss -- that can make a once-common coin genuinely hard to find decades later.
Keep Learning
Practical know-how on coin collecting, grading, precious metals, and mints and coin designs, plain-language explainers on mint marks, proof coinage, and bullion, and tips for first-time buyers and seasoned collectors alike — everything you need to dig deeper and collect with confidence.
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