Glad it ran, but the numbers aren't US. Once you login, "Other, rest of world" gives you a gross projection with tax and benefits off. The returns come from the same 25 country bootstrap everyone gets, with the domestic country resampled rather than pinned to the US.

What's genuinely missing for you is NZ tax and NZ Super. So it worked, but you got the generic version.

On the existing calculators, they're good and I use them too. Most are tried and true against US history, which is the one sample where equities did unusually well. That's the gap I was after.