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Post #1 is accurate with a current ramp  of 100 mA in 1ns thru 1 uH yields 100 V 

Just do not try a current source step pulse with Tr=0 except to test the insulation strength of your simulator (hah)

Your calc. be using old or wrong data.

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It's always a good thing to calibrate your mental calculator and your handy simulator. At least once you need a correction somewhere.

Here I use an ideal VCCC with 1V in and 100 mA out with an ideal R, L and R shunt to limit voltage with a step current with 0 ns risetime.

The L/R = 1e-6/1e6 risetime is 1ps and the voltage has decayed 63% and current risen the same.

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