Tagged “calculator”
109 pages · most loved first · page 3 of 5
I'm Sleepy
A minimal bedtime calculator that suggests when to go to sleep or wake up based on sleep cycles, free and with no accoun…
Interval Calculator
A browser calculator that performs arithmetic over disjoint sets of intervals, showing how uncertain ranges combine and…
Investment Calculator
A simple retirement calculator that projects the potential value of your investments from a few inputs and charts how th…
Is It Worth the Cost?
A small calculator that weighs a service's price against the time it saves, taking your hourly cost, training time and n…
Is It Worth The Time?
A calculator inspired by xkcd 1205 that uses your salary and the time a task takes to show how much effort automating it…
Just a Number
A short interactive that asks about someone older you love and how often you see them, then shows how many visits you ma…
KSP Visual Calculator
Interactive calculators for Kerbal Space Program that plan delta-v budgets, comm-net links and ISRU, drawn visually so y…
LastSip
A free caffeine cutoff calculator that works backward from your bedtime and sensitivity to tell you the latest safe time…
Let's Crunch It Retirement Calculator
A stochastic retirement planner that simulates many market scenarios to test the health of your plan across different in…
MathPapa
An algebra calculator that solves equations step by step, showing the working so students can follow exactly how each an…
Matrix Calculator
An online matrix calculator that handles addition, multiplication, inversion, determinants, rank, and LU decomposition,…
Matrix Calculus
Type a matrix or vector expression and this free online tool computes its derivative symbolically, showing the result in…
Matrix Multiplication
An interactive matrix multiplication calculator and visualizer built for learning, showing how each row and column combi…
MatrixOP
A real-time matrix calculator that solves matrix problems step by step and annotates each operation with comments, usefu…
Maxima on WebAssembly
A full Maxima computer algebra system running in your browser: solve equations, differentiate, integrate and plot functi…
MeasuringWorth
A free tool that calculates the historical purchasing power of money, letting you compare prices and wages across centur…
Microwave Watt
A small calculator that adjusts microwave heating times for your oven's wattage, so packaged food comes out right instea…
NOAA Solar Calculator
Click anywhere on a world map and get sunrise, sunset, solar noon and the sun's azimuth and elevation for any date, from…
Notepad Calculator
A free-form notepad where you jot down quick calculations in plain text and see the results appear in the margin, with s…
Numbat
A statically typed scientific calculator language with physical units built in, with an online terminal where you can tr…
Numbr
A smart calculator combined with a notepad, where notes and numbers sit side by side and results update as you type, han…
Numla
A smart math notepad in the browser that lets you write calculations in plain text alongside notes and see the results u…
NumPad
A web notepad with a built-in unit calculator, so you can type lines of text and math together and convert units or run…
NumWorks Graphing Calculator
A full online emulator of the NumWorks graphing calculator that lets you try every function, plot curves, and run calcul…
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