Factors come from the stored source family and are not derived from rounded display values.
Guides
Print, pixels, megapixels and PPI
Megapixels describe area, not print size. Clean print sizing needs pixel edges, PPI and target medium.
Unit console
用公式、语境和精度转换单位
UnitCloud 是面向日常、工程、IT、能源、交通和设计的本地测量实验室。
No match in this view. Use the direct conversions navigation or clear the search term.
图像分辨率
Fast path
Pixel count and print density are different. Print sizes also need width, height and ppi.
Search and practice paths
Search and practice paths
UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.
Do not use as the sole basis for official, medical, safety-critical or contractual decisions.
Citation note: UnitCloud, conversion with formula, sources current as of May 2026. 图像分辨率. Source basis: NIST Metric SI Prefixes.
Common questions
Why are megapixels alone not enough?
Megapixels describe area, not print size. Clean print sizing needs pixel edges, PPI and target medium.
What is the difference between px and PPI?
Megapixels describe area, not print size. Clean print sizing needs pixel edges, PPI and target medium.
What is the factor for Megapixel to Pixel?
1 MP = 1,000,000 px
Which formula does Megapixel to Pixel use?
1 MP = 1,000,000 px. Then the value is converted through the base unit px into Pixel.