计算器3000

Calculator 3000 (jsq3000.com) is a Chinese online calculator tool platform. I started with high-frequency use cases including mortgages, personal income tax, salary, car loans, BMI, and unit conversion, integrating scattered formulas, policy rules, and calculation steps into individual dedicated tool pages.

Currently, the site covers 12 major categories: finance, real estate, automotive, health, mathematics, unit conversion, dates, daily life, education, business, engineering, and science. 192 calculators are already live, and more will be continuously added across all categories to expand the collection. All tools are free to use with no login required. Just open the page, enter your numbers, and you can instantly see the results, detailed breakdowns, formulas, and applicable notes.

Why "Calculator 3000"?

The "3000" in the name isn't random — it's a goal I set for myself: to build 3,000 calculators in total. There are far more things in daily life that require calculations than you might think — buying a house, filing taxes, renovating, working out, traveling, going to school, running a business. Almost every task has a calculation behind it that's worth turning into a dedicated tool.

So this isn't a site I'll build once and abandon — it's a long-term to-do list. I'm developing calculators across all 12 categories simultaneously, adding them one by one. As I expand the total collection, I also strive to ensure every tool is accurate and clearly explained. Right now there are 192 calculators live, which is still a long way from 3,000, but the path forward is clear.