# CalculatorFox

1,336 free calculators with live steps, sources, and embeddable widgets for any website.

> Source: [Pro Launch](https://prolaunch.net) — a launch platform for startups and new tools.

- Pro Launch page: https://prolaunch.net/projects/calculatorfox
- Markdown version: https://prolaunch.net/projects/calculatorfox.md
- Website: https://calculatorfox.org/
- Categories: Everyday Tools, Finance & Fintech, SaaS
- Launch status: launched
- Launch date: 2026-09-22
- Upvotes: 0

## About

CalculatorFox provides 1,336 free online calculators across 23 categories, delivering instant results with step-by-step workings and cited sources for transparency. Key features: Embeddable calculators – Add any calculator to your website with three lines of code; customize starting values, lock fields, and update figures globally from a single dashboard. Advisor workspace – Financial advisers and businesses can create client-specific scenarios, generate branded reports, and manage per-website embed tokens with different rates. Personal workspace – Save, compare, export, and share calculation scenarios ad‑free. Live, sourced calculations – Every result shows the formula, intermediate steps, and references (e.g., HUD Mortgagee Letters) so users can verify the math. Target audience: consumers needing quick, trustworthy calculations; content publishers wanting interactive tools; financial advisers, accountants, and businesses that need branded, maintainable calculators for clients and websites. Value proposition: Eliminate spreadsheet errors and manual updates—change a rate once and every embedded calculator updates automatically. No ads, no tracking of your readers, and free for basic embedding.