ERC Calculator

ERC Calculator is a precise unit-conversion tool for Ethereum token developers and auditors. It converts between human-readable token amounts and the smallest on-chain units using token decimals. It is essential during token deployment, reward distributions, and audits to prevent rounding errors that can affect balances. The tool assumes a token standard similar to ERC-20 where the on-chain unit is Amount × 10^Decimals. It handles plain integers and decimal inputs, enforcing 0–18 decimals as a practical range.
Conceptual operation: inputs include amount (the token quantity in user-friendly units) and decimals (the token’s decimal places). Calculation uses base_units = amount × 10^decimals and reverse_conversion = base_units ÷ 10^decimals. The tool operates with integer arithmetic internally to avoid floating-point inaccuracies and reports results as exact integers for base units and precise decimal values for token amounts. It also validates that amount has no more fractional digits than decimals.
Who benefits: token issuers launching new tokens, auditors validating contract logic, developers building token-enabled DeFi products, and QA engineers verifying edge cases in test environments. Unique value includes dependency-free math, predictable rounding behavior, and clear handling of large integers. It surfaces both directions of conversion (to and from base units) and highlights potential overflow scenarios before deployment.
Core features and use cases: single-token conversions with explicit decimals, zero to eighteen decimal support, sample runs demonstrating common patterns (e.g., 1 token with 18 decimals, 12.5 tokens with 6 decimals), and optional export of results for reporting. It does not query on-chain data, estimate gas, or fetch price feeds; its scope remains deterministic arithmetic for token unit math.