Playful teal, mint, and orange mathematical sculptures
BIG IDEAS. NO MATH DEGREE REQUIRED.

Lay Math.
Make the numbers
make sense.

What’s 15% of 80? Start with a small question.
Find a clear answer. Then tackle the bigger ones.

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Free to use No sign-up
A different way to look at things.
A LITTLE MATH. A CLEAR ANSWER.Live

What is a percentage of a number?

Your figures — these are just a starting point.

%
YOUR ANSWER
15% of 80
12

15 ÷ 100 × 80 = 12.

No sign-up. No spreadsheets. Just a little clarity.Your figures. Real math.
WHAT WOULD YOU LIKE TO WORK OUT NEXT?

Small questions. Big decisions.

From a dinner bill to a business valuation, find the numbers that matter to you.

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LOST IN THE LETTERS?

Business speak, abbreviated.
We speak human.

Unpack the terms you hear. Without the textbook.

Browse all 23 abbreviations

HARD MATH. EVERYDAY CLARITY.

Math isn’t just for math people.

It’s for the person building something, pricing something, or wondering “what if?”
Lay Math turns intimidating ideas into things you can see, change, and understand.