Smart Calculator
Type plain English like "25% of 450" or "72 kg to lbs" and get stepped answers.
Type it how you'd say it
Plain expressions, percentages, functions and constants all work. Tap one to try it.
About the Smart Calculator
Type plain English like "25% of 450" or "72 kg to lbs" and get stepped answers. It sits in the Everyday section of NWS Calc, a free collection of calculators that run entirely in your browser. There is no signup, no paywall and no tracking — open the page, enter your numbers, get an answer.
Frequently asked questions
- Is the Smart Calculator free to use?
- Yes. Every calculator on NWS Calc is completely free, with no signup, no usage limits and no ads.
- Does my data leave my device?
- No. The Smart Calculator runs entirely in your browser using JavaScript. Nothing you type is uploaded, logged or stored on a server.
- Can I use the Smart Calculator on my phone?
- Yes. The page is fully responsive and works in any modern mobile or desktop browser — there is nothing to install.
- What else is in Everyday?
- The calculators you reach for daily — basic math, percentages, tips, averages. You can browse the full Everyday category for related calculators.