About CalcHub

CalcHub is a collection of free, accurate, and privacy-friendly online calculators for tech, finance, and everyday life. Every tool runs entirely in your browser — no data is ever sent to our servers.

Our Mission

We believe essential tools should be free and accessible to everyone. Whether you need to format code, convert data, or perform quick calculations, CalcHub provides simple, no-nonsense tools that get the job done without requiring signups, subscriptions, or data collection.

What We Offer

• Tech Calculators — LLM API Cost Calculator, EV Charging Cost Calculator, 3D Printing Cost Calculator, SaaS MRR Calculator
• E-Commerce — TikTok Shop Fee Calculator, Marketplace Fee Calculator, Poshmark Fee Calculator, Venmo Fee Calculator, Whatnot Fee Calculator, Grailed Fee Calculator, Reverb Fee Calculator, Cash App Fee Calculator, Etsy Fee Calculator, Square Fee Calculator, Amazon FBA Fee Calculator, GunBroker Fee Calculator, eBay Final Value Fee Calculator
• Finance — Salary Inflation Calculator, Pay Raise Calculator, Freelance Tax Calculator, Compound Interest Calculator, Stripe Fee Calculator, Freelance Rate Calculator, Cost Per Hire Calculator, Credit Card Fee Calculator, Credit Card Processing Fee Calculator, Coinbase Fee Calculator, Realtor Fee Calculator, IAAI Fee Calculator
• Lifestyle — EV vs Gas Calculator, Electricity Cost Calculator

Privacy First

All processing happens locally in your browser using JavaScript. Your data never leaves your device. We don't store, log, or transmit any input you provide to our tools. Read our Privacy Policy for more details.

Built With

CalcHub is built with Next.js and Tailwind CSS, deployed on Vercel for maximum speed and reliability. All pages are statically generated for instant loading times.