Discover free online calculators for everyday problems and clear articles about technology. Simple tools and insights to make life easier.
A Little Soulver Coffee Calculator — Sympolymathesy, by Chris Krycho
One of the many ways I use a great app in day-to-day life!
Qalculate! - the ultimate desktop calculator
I love calculator
The other day I was randomly browsing in a bookstore and stumbled by Empire of the Sum: The Rise and Reign of the Pocket Calculator. As I was flipping through its pages, a realization dawned on me with some force: I... love... calculator. I don't mean as a physical device that you would wish to purchase and use today. I mean as a product of technology and a symbol of a kind of philosophy. Behold:
Soulver — Notepad, meet calculator
A natural-language notepad calculator for Mac, iPad & iPhone. One-time purchase, 60-day free trial.
Fidget
Fidget is a library for representing, compiling, and evaluating large-scale math expressions, i.e. hundreds or thousands of arithmetic clauses. It's mainly designed as a backend for implicit surfaces, but the library is flexible enough for many different uses!
NumWorks Graphing Calculator
The graphing calculator that makes everybody a math person.
SpeedCrunch — Free High-Precision Scientific Calculator
SpeedCrunch is a free, open-source scientific calculator for Windows, macOS and Linux, with 50-digit precision, complex numbers and unit conversion.
Times Tables — Learn, Play and Print the Multiplication Tables
Practise every times table from 1 to 12 with free games, speed tests, printable charts and worksheets. Works on phones, tablets and computers. No sign-up.
Regnestykker
Sheets with calculus exercises suitable for kids that are learning the first basic arithmetic operations.
ChatGPT Both Is and Is Not Like a Calculator
Still talking about ChatGPT because there’s a lot at stake to getting this right.
WebMathMinute
WebMathMinute - Online Math Practice - Helping children strengthen their basic foundation in math.
Uri Bram 🔍 on Twitter / X
So I got memed into trying MathAcademy and it was one of the weirdest product experiences of my life. In short: I think they have an amazing product, but they're very opinionated about how you use it, and as a result I can't use it at all.Basically: they've figured out some…— Uri Bram 🔍 (@UriBram) January 16, 2025
Palomar — Lean-verified mathematics
A public registry of Lean-verified mathematical results.
The Truth About Carbon Footprints
Carbon footprints & carbon footprint calculators are a marketing tool to make individuals feel guilty for Big Oil's pollution. See how the oil industry is blaming you and me.
