Everyday Math
MAD Calculator
Find mean absolute deviation, the average, and a complete deviation table.
48 FREE TOOLS. ONE CLEAR ANSWER.
Less guesswork.
More clarity.
From everyday math to your next savings goal. Simple calculators that show you how, not just how much.
A LITTLE MATH, LIVE Try it
A clearer picture
of your data.
Find the mean absolute deviation in a moment.
Mean absolute deviation2.4
Calculated here. Your numbers stay here.
Working included. Guesswork excluded.
48 useful toolsMath, money, time & more
Answers with contextFormulas, examples & limitations
Private by designNo account. No input uploads.
FIND YOUR STARTING POINT
What are you working on?
A practical tool for the question in front of you.
A FEW GOOD PLACES TO BEGIN
Useful for the everyday.
Focused calculators. Clear results. No sign-up.
Statistics
Binomial Distribution Calculator
Calculate exact, cumulative, at-least, and between probabilities.
Everyday Math
Integer Calculator
Add, subtract, multiply, and divide signed integers with exact results.
Savings & Planning
How Long Will My Money Last?
Explore savings coverage using your spending, income, inflation, and return assumptions.
Savings & Planning
Monthly Savings Calculator
Project a future balance or solve for the monthly deposit needed for a target.
Time
Average Time Calculator
Average elapsed durations and see their total, minimum, and maximum.
Everyday Math
Squaring Calculator
Square a number or fraction and see the exact multiplication.
Everyday Math
Square Root Simplifier
Turn a whole-number square root into its simplest radical form.
Geometry
Reflection Calculator
Reflect points across an axis, a diagonal, or a custom straight line.
Unit Converters
Length Converter
Convert length units with a clear result and a complete equivalence table.
Unit Converters
Temperature Converter
Convert temperature units with a clear result and a complete equivalence table.
Investing
Monthly Dividend Calculator
Estimate annual dividend income and its average monthly equivalent.
NOT JUST AN ANSWER BOX
Know the answer.
Understand the working.
The useful part is not just the number. It is knowing what went in, which method was used, and where the limits are.
How our tools work01
Start with your numbers
Clear labels, example values, and input checks.
02
See the result and the method
Working, breakdowns, and graphs where they help.
03
Keep what you need
Copy, print, or export available result tables.
A LITTLE KNOW-HOW
Make sense of the numbers.
BETTER RESULTS
Why an exact answer and a decimal can look different
Fractions, rounding, and the small details that matter when reading a result.
Read the guideDATA MADE CLEAR
The mean gives a center. MAD tells you about spread.
Walk through a small data set and see what average distance really means.
Read the guidePLANNING WITH CARE
A savings projection is only as useful as its assumptions
Understand return conventions, contribution timing, and what a model leaves out.
Read the guideYour next answer starts here.
Pick a tool, enter your numbers, and make things clearer.