The NFT Royalty Calculator projects how much a collection can earn from its initial mint plus ongoing creator royalties on secondary trades. Because most chains do not enforce royalties at the protocol level, it models income under full, partial and zero enforcement so you can plan realistically.
How it works
There are two income streams. Primary revenue comes from the mint:
Primary revenue = collection size × mint price
This is a one-time event and is not subject to royalties. Secondary royalty income comes from resales:
Royalty per period = secondary volume × royalty rate × enforcement factor
A 5% royalty on 100 ETH of monthly volume earns 5 ETH per month at full enforcement. The enforcement factor scales that down: 1.0 means every marketplace honours the royalty, 0.0 means none do, and values between model a volume mix across marketplaces with different policies.
Enforcement scenarios
The tool shows three columns: full enforcement (factor 1.0), a partial scenario you can set, and zero enforcement (factor 0.0). This brackets the realistic range of outcomes after marketplaces’ policy changes, where optional or buyer-paid royalties became common.
Example and notes
A 10,000-piece collection minting at 0.05 ETH raises 10000 × 0.05 = 500 ETH up
front. If it then trades 80 ETH per month at a 7% royalty, full enforcement
yields 80 × 0.07 = 5.6 ETH monthly (≈67 ETH per year), while 50% partial
enforcement halves that. Set a conservative enforcement factor when budgeting —
secondary income is volatile and policy-dependent.