GOES Solar Flare Flux & Class Calculator
Solar flare space weather: Convert GOES soft X-ray flux ($1\text{–}8\text{ Å}$) into flare classes ($A, B, C, M, X$), integrated energy fluence ($\text{J/m}^2$), and NOAA R1–R5 radio blackout categories.
Flare Classification or Peak Flux
e.g. 2.8 gives X2.8
Flare Duration & Fluence
Full width at half maximum
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GOES Classification & Radio Blackout Output
Official GOES Flare Class:
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X-ray intensity category
NOAA Radio Blackout Level:
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R1 to R5 scale
Peak 1–8 Å Flux:
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Watts / m² at 1 AU
Integrated X-ray Fluence:
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Joules / m² at 1 AU
| HF Radio Absorption Band: | -- |
| Total Solar Surface Power Output: | -- |
| Equivalent TNT Megatons: | -- |
| Aviation & Satellite Impact: | -- |
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