Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Unit Converters
Resolution Pixel Calculator (Megapixels from Width and Height)
megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.
Megapixels = width × height ÷ 1,000,000. 1920×1080 is 2.07 MP, not “1080p magic.” 4K UHD 3840×2160 is 8.3 MP. Phone “48 MP” modes are sensor marketing plus pixel binning — convert the actual still you exported.
The frame
Megapixels
2.07 MP
16:9 frame. Marketing “48 MP” is a sensor mode, not always the JPEG you exported.
- Total pixels
- 2,073,600
- Aspect
- 16:9
- Print at 300 dpi
- 6.4 × 3.6 in
Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Width (pixels)
The “Width (pixels)” value used in this tool’s formula. Adjust it to see results update live.
Height (pixels)
The “Height (pixels)” value used in this tool’s formula. Adjust it to see results update live.
How this calculator works
Megapixels = width × height ÷ 1,000,000. 1920×1080 is 2.07 MP, not “1080p magic.” 4K UHD 3840×2160 is 8.3 MP. Phone “48 MP” modes are sensor marketing plus pixel binning — convert the actual still you exported. megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms. Example: 1920×1080 → 2.07 MP, 16:9. 6000×4000 still → 24 MP, 3:2.
megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.
Example: 1920×1080 → 2.07 MP, 16:9. 6000×4000 still → 24 MP, 3:2.
When to use this Resolution Pixel
Common use cases
- Megapixels = width × height ÷ 1,000,000. 1920×1080 is 2.07 MP, not “1080p magic.” 4K UHD 3840×2160 is 8.3 MP. Phone “48 MP” modes are sensor marketing plus pixel binning — convert the actual still you exported.
- Sanity-check with this case: 1920×1080 → 2.07 MP, 16:9. 6000×4000 still → 24 MP, 3:2.
- The relationship is: megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.
Localized examples
- Unit Converters: the example on this page uses the same formula as the widget.
What you get
- Fields: Width (pixels), Height (pixels)
- megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.
- Example on the page: 1920×1080 → 2.07 MP, 16:9. 6000×4000 still → 24 MP, 3:2.
How to Convert Resolution Pixel Step-by-Step
- 1Enter Width (pixels), Height (pixels). Use the values you have, not a catalog average, unless that is all you know.
- 2megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.
- 3Worked case: 1920×1080 → 2.07 MP, 16:9. 6000×4000 still → 24 MP, 3:2.
- 4Check which dictionary the other person is using — US or UK, decimal or 1,024 — then trust the number.
Governing formula
megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.
1920×1080 → 2.07 MP, 16:9. 6000×4000 still → 24 MP, 3:2.
Example: set Width (pixels) = 1,920, Height (pixels) = 1,080, then read the result.
Variable definitions
- width
Width (pixels)
The “Width (pixels)” field. Default 1920; typical range 1–20000.
- height
Height (pixels)
The “Height (pixels)” field. Default 1080; typical range 1–20000.
- The conversion (megapixels = (width × height) / 1,000,000. Aspect ratio = width:height in lowest terms.) does not pick US vs UK gallons, SI vs binary megabytes, or Mach at altitude for you. Read the footnote on the page.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
At 300 dpi, inches = pixels ÷ 300. A 2.07 MP 16:9 frame is about 6.4×3.6 in at 300 dpi.
Related calculators
Unit Converters
- Aspect RatioHeight = width × (ratio height / ratio width). 1920×1080 is 16:9. Instagram’s 1:1 is a crop, not a camera sensor. Letterboxing is you refusing to crop.
- Centimeters to Pixelspx = (cm / 2.54) × DPI. A 10 cm bar at 300 DPI is 1,181 px. A4 width 21 cm at 300 DPI is 2,480 px. Packaging die-lines still want millimeters and bleed; this is the raster step.
- Inches to PixelsPixels = inches × DPI. A 4×6 print at 300 DPI is 1200×1800 px. Screens often assume 96 DPI in CSS. If the print shop said 300, do not export at 72 and hope.
- Inches to PointsDesktop publishing locked the point at 1/72 of an international inch. 1 in = 72 pt. Letter paper 8.5 in is 612 pt. This is not 96 CSS px per inch and not a 300 DPI raster. For px, pick a DPI on the points-to-pixels page.
- Line Height MultiplierUnitless line-height 1.5 on 16 px type is 24 px. Headlines often 1.15–1.3; body 1.45–1.7. A length in px will not inherit as nicely as a unitless multiplier.
- Picas to PointsA PostScript pica is 12 points, and a point is 1/72 in. Six picas make an inch. InDesign’s “p6” is this pica. CSS px is a different conversation — use points to pixels if the output is a screen.
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Community
Reviews & Ratings
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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