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TV Color Gamut Converter
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Convert values between different color gamut standards (NTSC, sRGB, DCI-P3, Adobe RGB, BT.2020) online, helping you understand color gamut parameters of TVs and displays.
Enter your display's color gamut coverage and select its standard to convert it to other common TV gamut standards. Common approximations: 72% NTSC ≈ 100% sRGB ≈ 99% BT.709.
| Gamut Standard | Coverage |
|---|---|
| sRGB | 100.01% |
| BT.709 | 100.01% |
| NTSCSource | 72% |
| Adobe RGB | 76.93% |
| DCI-P3 | 80.01% |
Conversions are estimated based on the relative coverage area of each gamut on the CIE 1931 chromaticity diagram. Results are approximate; actual display performance should refer to manufacturer's measured data.
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
Enter a percentage reported against one gamut standard and choose that source standard. The results table then estimates corresponding percentages for five choices: sRGB, BT.709, NTSC, Adobe RGB and DCI-P3. The selected source row is marked so you can tell the input apart from the other estimates. This is a fixed area-ratio comparison for reading unlike spec-sheet labels; it does not inspect a television or monitor.
A gamut is the range of colors associated with a color space or display. A coverage percentage is meaningful only with its named reference gamut and measurement method. For orientation, sRGB is a defined RGB color space used widely for web content, while ITU-R BT.709 specifies parameters for HDTV production and programme exchange. Their names describe standards; they do not turn this calculator's estimate into a measurement.
The calculation treats each selected standard as a relative area weight. It converts the entered percentage into a relative area, then divides by each destination weight. The built-in weights are sRGB 1.0, BT.709 1.0, NTSC 1.389, Adobe RGB 1.3 and DCI-P3 1.25.
Estimated destination percentage = entered percentage × source weight ÷ destination weight
Example: 72% NTSC × 1.389 ÷ 1.0 = 100.008%, displayed as 100.01% for sRGB and BT.709.
The source row stays at the entered percentage (subject to display rounding). Other results are shown to at most two decimal places. The same input and source always produce the same five-row comparison; no external lookup is needed to calculate it.
A result above 100% is a value from the ratio formula, not a claim that a physical display covers every color in that destination standard. For example, the 72% NTSC illustration produces about 100.01% for sRGB, 76.92% for Adobe RGB and 80.01% for DCI-P3. The tool displays each result as a percentage and marks the original NTSC row. These values are useful for a rough side-by-side reading of reported numbers, not as a ranking of picture quality.
When comparing products, retain the original label alongside the estimate. The source standard is part of the meaning: entering 72 with NTSC selected is a different calculation from entering 72 with DCI-P3 selected. A percentage alone does not say which colors overlap between two gamuts.
Find a gamut percentage in the product specification, review, or measurement report, and note the standard named beside it.
Enter the numeric percentage. The field accepts a non-negative numeric value; a percent sign is shown as the unit.
Choose the matching source standard from sRGB, BT.709, NTSC, Adobe RGB or DCI-P3.
Read the output rows and keep the source label with any copied figures. Use the copy control to copy the complete results table as text.
If a listing gives an NTSC percentage and another gives a DCI-P3 percentage, convert each from its own stated source to see the tool's ratio-based estimates in one set of columns. Treat that as a first-pass comparison, then consult comparable independent measurements before choosing.
For a shortlist with mixed sRGB, Adobe RGB and DCI-P3 labels, record each reported value and its source standard, then use the output table to make a consistently formatted note. The calculation does not establish that two panels were tested under the same conditions.
In a class or buying guide, use a worked example to show how changing the source standard changes the estimated rows. Explain that area-based percentages compare magnitudes, not the exact colors a display can reproduce.
W3C's sRGB page describes the color space and explains its relationship to BT.709; W3C identifies that page as a historical 1996 proposal and points to IEC 61966-2-1 as the later standardization. ITU lists BT.709-6, approved in June 2015, as in force for HDTV production and international programme exchange. These references help identify two names in the table. Neither publishes or endorses this tool's five numeric weights.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Use the percentage as it was reported, without converting it yourself first. Match the source selector to the label next to that number. If the spec says “coverage” but does not identify a gamut standard, the input basis is unclear; find a fuller specification or measurement report before interpreting the estimates.
For a simple check, enter 72 and select NTSC. The table keeps NTSC at 72%, estimates sRGB and BT.709 at 100.01%, Adobe RGB at 76.92%, and DCI-P3 at 80.01%. The final digits reflect the built-in weights and two-place display rounding. Copying the result preserves all five labels for your notes.
Q&A
Find concise answers to common questions and confusing cases.
No. This model returns about 100.01% from its fixed area weights, but equal or similar area does not show that the display covers the same colors. Use a measured coverage report for a device-specific answer.
The formula divides the source-relative area by the destination weight. The resulting ratio can exceed 100%; it is not capped because it is a calculated comparison, not a measured coverage limit.
The entered percentage is first multiplied by the selected source weight. Choosing a different source changes that base area, so each destination estimate is recalculated.
Negative values do not produce a result. BT.2020 is not among the five source or result choices, so this page cannot estimate it.
Notes
Review scope, result limitations, and important precautions before use.
The fixed weights ignore gamut shape and position, the amount of overlap, white point, standard versions, and the measurement procedure. Two gamuts with comparable areas may cover different colors. The estimates therefore cannot establish actual display coverage, gamut overlap, color accuracy, calibration quality, HDR performance, or whether a screen is suitable for a particular color workflow.
The weights are fixed approximations used by this calculation, not universal conversion factors published by a standards body. A percentage over 100% is not proof of full coverage. For purchase or production decisions, check the product's documented test conditions and a relevant measured report; compare figures only when their standards and methods are clear. This tool has no BT.2020 option.
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