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Gigapixel to Megapixel

Exact answer: 1 GP = 1000 MP (exact – SI decimal prefix)

Gigapixel and Megapixel both belong to the Image resolution family. The difference is a decimal prefix, so the factor is a clean power of ten. Image resolution determines print size, storage requirement and file size.

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From0.5 GP
Result500 MP
Factor1 GP = 1000 MP
Source basisNIST Metric SI Prefixes

Examples

010.5 GP = 500 MP

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

Pixel count and print density are different. Print sizes also need width, height and ppi.

03Base unit: px

1 GP = 1000000000 px. Then the value is converted through the base unit px into Megapixel.

Table

Gigapixel to Megapixel
GigapixelMegapixel
0.5500
11,000
22,000
55,000
1010,000
5050,000

Formula

1 GP = 1000000000 px. Then the value is converted through the base unit px into Megapixel.

Sources

NIST Metric SI PrefixesDecimal SI prefix names and factors.

Related conversions

Megapixel to PixelMP → pxImage resolutionPixel to Megapixelpx → MPImage resolutionMegapixel to GigapixelMP → GPImage resolutionPixel to Kilopixelpx → kpxImage resolution

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Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Image resolution. Source basis: NIST Metric SI Prefixes.

Common questions

What is the factor for Gigapixel to Megapixel?

1 GP = 1000 MP

Which formula does Gigapixel to Megapixel use?

1 GP = 1000000000 px. Then the value is converted through the base unit px into Megapixel.

What is the most common mistake?

Pixel count and print density are different. Print sizes also need width, height and ppi.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.