Help on a visual basic code, how to convert English system into metric?

Hello Im trying to convert the English system into the metric system in visual basic, here is what i have so far

Sub Metric()
Dim num As Single
num1 = InputBox(" enter feet...")
num2 = InputBox(" enter inches...")


Any one with knowledge in code able to help me out, im just learning vb code a couple of days ago for school so Im a bit new. Thank you

Here's a novel idea.. Open the textbook and read.....

Then think about it... How do you convert Imperial to metric??? The answer to this Question is the Answer to your problem....

That might be homework, and there are a lot more answers to THAT question.

Ever hear of a thing called the Internet? You can SEARCH for anything that anybody has EVER asked. The secret is you have to LOOK for answers yourself