ΔE 8.6, close: similar, with a visible difference side by side. US Interior Yellow is a little lighter than Faded Khaki.
Usually, if you are not matching paint already on the model. Close match (ΔE 9). US Interior Yellow is a little lighter than Faded Khaki.
The same difference applies the other way round: Faded Khaki is a little darker.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Faded Khaki on the colour wheel See US Interior Yellow on the colour wheel
All matches: Faded Khaki equivalents · US Interior Yellow equivalents