Everyday money and number tools in one hub: live currency conversion, compound interest and loan/EMI calculators, a percentage calculator for ratios and change, and binary/hex number-base conversion with a bit visualizer. Useful for quick estimates, homework checks, and planning — not financial advice or product offers. All calculations stay on your device; currency rates may be fetched from public providers and cached locally for speed. Open a tool below when you need a focused calculator rather than a full spreadsheet.