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Use our free scale factor calculator to find the scale factor between original and scaled values (enlargement or reduction), find the scaled dimension given original and factor, or find the original given scaled and factor. Shows percentage change and reciprocal factor.
Compute the scale factor between original and scaled values, or find a missing dimension. Shows enlargement/reduction, percentage change, reciprocal, and ratio form.
Scale Factor = Scaled ÷ OriginalPercentage: The percentage value you want to apply
Number: The original number or value
Result: The calculated result
Result: 2
Result: 15
CalculateMe Team
Last updated: 2026-07-15