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Bathroom Mirror Size Calculator
Suggested mirror width and height for a vanity from its width and mounting height.
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Mirror size
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Suggested mirror width and height for a vanity from its width and mounting height.
Bathroom Mirror Size Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Width = vanity width – 4 in; height from ceiling clearance, 24-42 in.
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Bathroom Quick Guide
Typical values for reference.
| Vanity in | Ceiling in | Margin in | Mirror |
|---|---|---|---|
| 24 | 96 | 8 | 20 x 28 in |
| 36 | 96 | 8 | 32 x 28 in |
| 48 | 96 | 8 | 44 x 28 in |
| 72 | 96 | 8 | 68 x 28 in |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Bathroom Mirror Size Calculator FAQ
Answers to common questions about this calculator.
About 30-32 in wide.
Centre near eye level, about 60-65 in.
Width = vanity width – 4 in; height from ceiling clearance, 24-42 in.
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.