convert LUFs to decibels

Not comparable, for two reasons.

First, you're mixing up two different things. LUFs (with the Fs added, which denotes Fullscale as the reference) means a certain place on the loudness meter. However, LU without the Fs just means a distance, like in "x LU more than y".

Same with dB which without the reference is just a difference, equal in size of LU, so if you turn up a fader by 4 dB, a connected LU-meter will show 4 LU more than before while a dB-meter will also show 4dB more. But 4 dBm (the m stands for a reference level of 0,775 Volts) is again a certain place on the meter which results in exactly 1,228 Volts on an output.

So don't confuse measurements with and without reference.

Second, you're mixing up two other different things An LU-meter and a dB-meter show very different things. The dB-meter, as pointed out, shows magnitude of electrical ac-voltage while an LU-meter shows the perceived loudness of the sound resulting from that ac-voltage. You can have vastly different readings on both meters depending on the kind of signal (compressed, uncompressed, with/without sharp transients) that you measure.

The dB-meter is the source of the loudness war and the LU-meter is its cure.

LU and dB are equivalent. The steps have equal size.

...away from either 0 LUFs or -32 LUFs, yes.

https://www.amazon.com/slp/decibel-meter/4qv7ch9m9o8r9ox