Aspect Ratio Calculator
Calculate equivalent canvas dimensions when scaling artwork to a different size. Includes golden ratio detection.
Quick presets
How We Calculate This
Scale factor = New dimension / Original dimension
Other dimension = Original dimension x Scale factor
Common art ratios
- 1:1 — Square (common for Instagram, portraits)
- 3:4 — Classic canvas (30x40 cm)
- 2:3 — Standard photo / 35mm film
- 4:5 — Popular medium format
- 1:1.618 — Golden ratio (considered the most aesthetically pleasing proportion)
- 1:1.414 — A-series paper ratio (1:√2)
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify quantities before purchasing materials.