What this calculator does
This multiplication calculator takes any two numbers, such as 170 x 3, and returns the product along with a short times-table built around your first number. It handles whole numbers, decimals and negative values, so it covers everyday sums as well as quick checks of a calculation done by hand.
The one thing worth watching with mental or written multiplication is decimal placement: multiplying 17 x 3 and then moving the decimal point is a common shortcut, but it is easy to lose track of how many places to shift when either number carries a decimal fraction. Entering the numbers directly here sidesteps that step entirely.
The formula
Multiplication is repeated addition: a × b adds a to itself b times, though for anything beyond small whole numbers it is far quicker to multiply directly. The calculator simply returns a × b, plus a × 1 through a × 10 as a reference times-table for the first number entered.
| Term | Meaning |
|---|---|
| a | The first number entered, sometimes called the multiplicand. |
| b | The second number entered, sometimes called the multiplier. |
| Product | The result of a × b. |
The inputs explained
| Field | What to enter |
|---|---|
| First number | The first number in the multiplication. Can be a whole number, a decimal or negative. |
| Second number | The second number in the multiplication. Can be a whole number, a decimal or negative. |
When to use it
Checking a manual calculation
Working through multiplication by hand, especially with decimals or larger numbers, is an easy place to slip a digit. Entering the same two numbers here confirms the answer before it goes into a bigger calculation.
Scaling a quantity by a fixed factor
Tripling a recipe, converting a per-unit price to a bulk price, or projecting a rate over several periods are all a single multiplication once the two numbers are known.
Working with a times-table
The reference table alongside the main result shows the first number multiplied by 1 through 10 in one view, useful for spotting a pattern or checking several related products at once.
Worked examples
Every figure in the tables below is produced by this page’s own calculator at build time, so the numbers and the tool always agree. Select any row to load that scenario.
What is 170 multiplied by numbers from 1 to 10?
The times-table for 170, one row per multiplier from 1 to 10.
| Second number | Product |
|---|---|
| 1 | 170.000 |
| 2 | 340.000 |
| 3 | 510.000 |
| 4 | 680.000 |
| 5 | 850.000 |
| 6 | 1,020.00 |
| 7 | 1,190.00 |
| 8 | 1,360.00 |
| 9 | 1,530.00 |
| 10 | 1,700.00 |
How does the product change as the first number grows, at a fixed multiplier of 3?
A range of first numbers, each multiplied by 3.
Questions
What is 170 x 3?
170 multiplied by 3 is 510. Enter 170 and 3 into the calculator above to see this worked alongside the surrounding times-table.
Does this work with decimals?
Yes. Enter either number as a decimal, such as 17.5 x 3, and the calculator returns the exact product without needing to shift a decimal point afterwards.
Can I multiply negative numbers?
Yes. The calculator accepts negative values for either number and applies the usual sign rule: a negative times a positive gives a negative result, and two negatives give a positive result.
Why is a times-table included?
A single product answers one question, but seeing the first number multiplied by 1 through 10 in one table often answers several related questions at once, such as spotting the next few multiples.
For raising a number to a power instead of multiplying it by another, see the exponents and roots calculator. For the lowest common multiple or a shared list of multiples between two or more numbers, see the common multiples calculator.