Smart Contract Audit Cost Calculator

Estimate smart contract audit costs based on code size, complexity, auditor tier, and timeline urgency.

Lines of Solidity Code

Complexity Level (1-4)

Auditor Tier (1-3)

Number of Audit Firms

Urgency (1-3x)

Tab to move between fields

Total Audit Cost ($)

$16,000

Estimated Timeline (days)

Single Audit Cost ($)$10,000

Effective Cost / LOC ($)$32

Recommended Bug Bounty ($)$48,000

Total Security Budget ($)$64,000

How to Use This Calculator

Enter Lines of Solidity Code excluding tests — a simple token is ~100 LOC, Uniswap V3 core is ~2,500 LOC.
Set Complexity Level: 1 = simple token, 2 = DeFi protocol, 3 = complex/upgradeable, 4 = critical (bridge/lending).
Choose Auditor Tier: 1 = top firm (Trail of Bits, OpenZeppelin), 2 = mid-tier (Halborn, CertiK), 3 = boutique.
Set Number of Audit Firms — two independent audits is best practice for DeFi protocols.
Review Total Audit Cost, Estimated Timeline in days, and Total Security Budget (audit + bug bounty) to plan your launch schedule.

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