Audit cost calculator
Smart contract audit cost calculator
Use this for research or use it to get real quotes.
- Free, no sign-up
- Built on $1.2M in RFP budgets posted
- Every chain and language
Indicative market range
$52K – $92K
An estimate, not a quote.
- Estimated duration
- 3–4 weeks
How the estimate works
Smart contract audit cost calculator
This free calculator estimates your smart contract audit cost from five inputs: chain and language, protocol type, codebase size in nSLOC (normalised source lines of code), TVL at launch and launch stage. The output is an indicative market range built from real quotes closed through the Procur3 marketplace, not a rate card and not one firm's price list.
Why a market estimate beats a single firm's quote
Most audit cost calculators are built by audit firms, and they return that firm's price. That tells you what one vendor charges; it doesn't tell you what your audit should cost.
Procur3 is a neutral marketplace. We don't perform audits and we don't take payment for placement, so the range here reflects what teams across the market have actually paid. Identical scopes routinely quote 3–5x apart between equally credible firms, because pricing tracks each firm's utilisation, brand position and appetite for your category. Knowing the range before you talk to anyone is the difference between negotiating blind and negotiating informed.
What the output means
The calculator returns an indicative market range and an estimated engagement duration. It's deliberately a range, because there is no single market rate: the only way to know your number is competitive quoting.
From estimate to real quote
The calculator answers what should this roughly cost. To answer what will it cost from firm X, post the same scope on Procur3. Matched, vetted firms respond with competitive quotes, usually within the hour, including price, timeline, team assigned and methodology. No firm pays to be on Procur3, and no firm pays to reach you.
What changes the price
Five inputs move your number.
Chain and language
Sets reviewer supply. Non-EVM stacks price 20–60% above Solidity, where the pool is deepest.
Protocol type
Captures complexity. A vanilla ERC-20 doesn't need the depth a lending market, an orderbook DEX or a cross-chain bridge does.
Codebase size
The largest single input. Under 1,000 nSLOC is a lightweight review, 5,000+ a multi-week engagement, 15,000+ dedicated-team territory.
TVL at launch
Drives diligence depth. Firms scale review effort with the money at stake.
Launch stage
A pre-testnet design review is scoped differently from a pre-mainnet full audit or a live-protocol upgrade review.
Market ranges, 2026
Typical smart contract audit costs by protocol type.
Built from quotes on the Procur3 marketplace.
| Protocol type | Approx. nSLOC | Price range | Typical timeline |
|---|---|---|---|
| ERC-20 token (custom logic) | 200–500 | $1,000–$10,000 | 1–2 weeks |
| NFT collection (ERC-721/1155) | 500–1,500 | $3,000–$30,000 | 2–3 weeks |
| Staking / vault protocol | 1,000–3,000 | $5,000–$60,000 | 3–4 weeks |
| Governance / DAO system | 1,000–5,000 | $10,000–$80,000 | 3–5 weeks |
| Lending protocol or AMM | 3,000–8,000 | $15,000–$150,000 | 4–8 weeks |
| Cross-chain bridge | 5,000–15,000+ | $50,000–$150,000+ | 6–12 weeks |
| L1 / L2 chain | 10,000+ | $150,000–$1,000,000+ | 3–6 months+ |
For the full breakdown of what drives pricing, read Smart Contract Audit Cost in 2026: Real Prices, Real Ranges.
Questions