Every number. Every answer. One place.
Calcorithm offers free online calculators and generators for finance, health, math, unit conversion, developer tools and SEO. Calculate mortgage payments, convert currencies, check your BMI, generate passwords, format JSON and much more — instantly, without creating an account.
Pick a category and start calculating
Built for simplicity, accuracy and speed
Calcorithm is a free online suite of calculators, converters and generators built for everyday use. Whether you need a mortgage payment calculator, a BMI calculator for your health, a currency converter for travel, or a JSON formatter for development work — every tool runs instantly in your browser.
We believe a calculator should just work. No signup, no premium tier, no annoying ads inside the tool. Just open the page, type your numbers and get an answer in real time. All calculations happen locally so your data never leaves your device.
Browse our finance calculators for compound interest, salary breakdowns and tax estimates. Use the health calculators to check your body fat, calorie needs or pregnancy due date. Convert anything with our unit converters for length, weight, temperature, area and data sizes. Developers can speed up daily work with the developer tools like JWT decoders, regex testers and SQL formatters.
Need to generate a strong password, a unique UUID, a QR code or a list of fake test data? Our generators category has it. Working on content? The SEO tools include keyword density analysis, meta tag generators and AI prompt enhancers. Every tool is documented with a clear explanation of how it works and what each input means.