Yes, this is exactly what I am trying to do.  While the calculator won't allow me to be specific on each monthly contribution, it's a start.  I think the growth rate will lead to the most inaccuracies since it's not as consistent as the calculator wo...

I  was fortunate to have a pension and took a lump sum after over 20 years. It was a contributory pension that allowed me to contribute 1.5% of my salary monthly for a higher pension.I'd like to calculate the performance as if it was an investment. I...