Scale Factor Table: Scale factor by New (scaled) size
Reference table of scale factor for Scale Factor across a range of new (scaled) size values — exact, engine-computed figures you can read off at a glance.
Scale Factor Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Scale factor
1.5000
- As a percentage
- 150.00%
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Scale Factor Calculator
The Scale Factor Calculator works out your scale factor, along with 1 related figure in an instant. Enter new (scaled) size and original size and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the new (scaled) size.
- Enter the original size.
- Read off your scale factor, together with as a percentage — the calculator updates automatically, with no button to press.
Formula
The Scale Factor Calculator uses the formula:
Scale factor = New (scaled) size ÷ Original size
Worked example
For example, with new (scaled) size of 15 and original size of 10, the scale factor is 1.5000.
| New (scaled) size | 15 |
|---|---|
| Original size | 10 |
| Scale factor | 1.5000 |
|---|---|
| As a percentage | 150.00% |
Results are estimates for educational use, not professional advice.
Key terms explained
- Percentage
- A number expressed as a fraction of 100, written with the % sign.
Frequently asked questions
It is the ratio of a new size to the original. Going from 10 to 15 is a scale factor of 1.5, or 150%.
Multiply every length by the scale factor. A factor above 1 enlarges; below 1 shrinks.
Area scales with the square of the factor, so a factor of 1.5 multiplies area by 2.25.
Volume scales with the cube of the factor, so 1.5 multiplies volume by about 3.375.
The Scale Factor Calculator uses the formula: Scale factor = New (scaled) size ÷ Original size. For example, with new (scaled) size of 15 and original size of 10, the scale factor is 1.5000.
Enter the new (scaled) size. Enter the original size. Read off your scale factor, together with as a percentage — the calculator updates automatically, with no button to press.
Related guides
How to Calculate Scale Factor: Formula, Steps & Examples
Learn how to calculate Scale Factor — the formula explained step by step, with worked examples and a free calculator to check your answer.