Optimism Calculators
The rollup that turned its stack into a shared standard.
5 free OP calculators
Every one opens with the live OP price already filled in. All maths runs in your browser — no signup, nothing stored.
Free Optimism (OP) profit calculator. Enter your buy and sell price to see OP profit, loss, ROI and fees — prefilled with the live OP price.
Free Optimism (OP) dollar-cost-averaging calculator. Model recurring OP buys to see coins accumulated, average entry and portfolio value at today's live price.
Work out your weighted average Optimism (OP) entry price across multiple buys — and see exactly where your break-even sits.
Find the exact Optimism (OP) price that liquidates your leveraged position. Prefilled with the live OP price — set your leverage and direction.
Calculate Optimism (OP) market cap from the live OP price and circulating supply — plus FDV, and the price OP would need to reach any target valuation.
About Optimism
Optimism is an optimistic rollup whose lasting contribution is the OP Stack — the codebase behind Base, World Chain and a growing set of others, collectively the Superchain. Governance is split in two: a Token House of OP holders and a Citizens' House that allocates retroactive funding to public goods. As on Arbitrum, gas is paid in ETH; OP is for governance. Its supply cap is 4,294,967,296 — 2³², a deliberate joke that happens to be a hard number.
Fees are a few cents and move with Ethereum's data costs; chains built on the OP Stack share the same economics.
OP competes directly with ARB for the same narrative, and the two tend to move together — often on the same rollup news.
Optimism at a glance
- Launched
- Chain and OP token 2022
- Type
- Optimistic rollup; OP Stack powers the Superchain
- Max supply
- 4,294,967,296 OP (2³²)
- Gas token
- ETH — not OP
- Governance
- Token House plus a Citizens' House for retroactive funding
- Native staking
- None — OP is used for governance
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