Photo Size Converter & Passport Maker – Free Browser Tool

Professional image resizing with DPI control, crop, rotate, and print sheet generation. All processing happens locally in your browser – no uploads, no server.

Understanding Pixels, CM, MM, Inches, and DPI

Pixels are the smallest unit of a digital image. DPI (dots per inch) determines print resolution. For passport photos, 300 DPI is standard. Use our real-time pixel calculator to convert between units.

Unit	Conversion (300 DPI)
1 inch	300 px
1 cm	118.11 px
1 mm	11.81 px

Passport & ID Sizes

India Passport: 2×2 inch (51×51 mm) • USA: 2×2 inch • UK: 35×45 mm • Australia: 35×45 mm • Visa: 2×2 inch. PAN Card: 3.5×3.5 cm, Aadhaar: 5×5 cm.

Print Sizes: 3.5×5, 4×6, 5×7, 8×10, 8×11, 8×12

These standard print sizes are perfect for photo books, frames, and portfolios. Our tool automatically calculates pixel dimensions based on selected DPI.

Best Practices & Warnings

• Always use 300 DPI for print quality.
• Maintain aspect ratio to avoid distortion.
• Use transparent PNG for ID photos.
• Keep file size under 1MB for online submissions.

Comparison Table: Passport Sizes

Country	Size (mm)	DPI
India	51×51	300
USA	51×51	300
UK	35×45	300

Why Choose This Tool?

100% free, no watermarks, no uploads. Built with Canvas API for high-performance image processing. Supports JPEG, PNG, WEBP, BMP, GIF. Includes batch resize and photo sheets.

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