uint256 Calculator – Deterministic big-integer calculator for blockchain developers

Summary: uint256 Calculator performs 256-bit unsigned integer arithmetic matching Ethereum and Solana EVM behavior, supporting precise operations and multiple precision contexts with on-chain rounding logic. It enables developers to verify calculations exactly as they execute in smart contracts.

What it does

It handles addition, subtraction, multiplication, and division of 256-bit unsigned integers with support for fixed-point precisions (e18, e9, e12) and rounding that mirrors on-chain logic.

Who it's for

Blockchain developers and DeFi engineers needing accurate integer arithmetic aligned with EVM and Solana smart contract math.

Why it matters

It solves discrepancies caused by generic calculators that fail to replicate on-chain integer math and rounding in smart contracts.