Calculating Enlargement and Reduction Ratios for Copy Paper

Calculates the scaling ratio when making enlarged or reduced copies between A and B paper sizes.

Source paper size:	, mm * mm
Destination paper size:	, mm * mm
Enlargement/Reduction Ratio:	（ % ）

Supports paper sizes ranging from A0 to A10 (ISO) and B0 to B10 (JIS).

*Note: Depending on the copier, the display of enlargement or reduction ratios may differ.
(e.g., A4 → B5 84%, etc.)

*Note: This website assumes no responsibility whatsoever for calculation results or other information. Furthermore, we do not provide individual consultations.

Epexegeses

A版(ISO)
	サイズ	割合
A0	841 mm * 1189 mm	---
A1	594 mm * 841 mm	A0の1/2
A2	420 mm * 594 mm	A0の1/4
A3	297 mm * 420 mm	A0の1/8
A4	210 mm * 297 mm	A0の1/16
A5	148 mm * 210 mm	A0の1/32
A6	105 mm * 148 mm	A0の1/64
A7	74 mm * 105 mm	A0の1/128
A8	52 mm * 74 mm	A0の1/256
A9	37 mm * 52 mm	A0の1/512
A10	26 mm * 37 mm	A0の1/1024

B版(JIS)
	サイズ	割合
B0	1030 mm * 1456 mm	---
B1	728 mm * 1030 mm	B0の1/2
B2	515 mm * 728 mm	B0の1/4
B3	364 mm * 515 mm	B0の1/8
B4	257 mm * 364 mm	B0の1/16
B5	182 mm * 257 mm	B0の1/32
B6	128 mm * 182 mm	B0の1/64
B7	91 mm * 128 mm	B0の1/128
B8	64 mm * 91 mm	B0の1/256
B9	45 mm * 64 mm	B0の1/512
B10	32 mm * 45 mm	B0の1/1024

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