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Resize Image in cm

Forms and print shops ask for sizes like 3.5 × 4.5 cm. Type the size in centimetres, millimetres or inches and get the exact pixels.

✓ No upload, 100% private✓ No sign-up✓ Works on phone & desktop

1 Add your photo or signature

Drop your photo or signature here

or paste it with Ctrl+V. A phone photo of a signature on white paper works well

JPG · PNG · WebP · HEIC where supported. Your image stays on your device.

How to use Resize Image in cm

Centimetres become pixels through the DPI: at 300 DPI, 1 cm is about 118 pixels. Forms usually say which DPI they want; if not, 200 is safe.

Quick answers about the resize image in cm tool.

How many pixels is 3.5 × 4.5 cm?

At 300 DPI it is 413 × 531 pixels; at 200 DPI, 276 × 354 pixels.

Is it free?

Yes, free with no watermark and no sign-up.

Are my photos uploaded?

No. Everything runs in your browser on your phone or computer; nothing is uploaded.

Everything runs in your browser. Nothing is uploaded.