Multiplication Calculator
Multiply numbers of any size exactly, including decimals.
Enter your values to see the result.
Continue your work
- Division Calculator — Divide numbers with exact decimals.
- Square Calculator — Multiply a number by itself.
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Clear instructions
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How to use the Multiplication Calculator
The multiplication calculator multiplies numbers exactly, whatever their size. It keeps every digit of very large products and gets decimals exactly right, so 0.1 × 3 gives 0.3. The result is shown in standard and scientific notation, with the number of digits in the answer.
- 1 Enter the first number.
- 2 Enter the second number.
- 3 Read the product and its scientific notation.
Example and practical tips
125 × 48 = 6,000. Multiplying two 20-digit numbers gives an exact 39- or 40-digit result.
Frequently asked questions
What is a product in math?
The product is the result of multiplying numbers. In 6 × 7 = 42, the product is 42.
How do I multiply decimals?
Multiply as if there were no decimal points, then place the point so the answer has as many decimal places as both numbers together. The calculator does this exactly.
What happens when multiplying negative numbers?
A negative times a positive is negative, and a negative times a negative is positive.