Coil wire diameter

[DreamOfMirrors]

Hello, I have a technical question: can I use a different wire diameter for coil construction? I think it's possible but I don't know if I must rewind a different number of turns or if it can work with same number of turns.
I have bought enameled copper wire for another project (Mark Stuart EE treasure hunter) and it's a 0.71 mm one.
If someone can give me such an information I will try out soon

[silverdog]

coil calculator

one of the members here posted a coil calculator

I have attached again just in case you can't find it

[DreamOfMirrors]

Thank you! Now I have used the old coil to test everything is working.
I will soon optimize using this tool.
What must be matching? Inductance?
Original:
26 turns, 250 mm diameter, 0.4 mm wire: 1.215 mH
I computed this:
27 turns, 250 mm diameter, 0.71 mm wire: 1.178 mH
28 turns, 250 mm diameter, 0.71 mm wire: 1.263 mH
Is it correct?

[Carl-NC]

The wire diameter is not critical, use what you have and keep the same number of turns.

- Carl

[Qiaozhi]

Thank you! Now I have used the old coil to test everything is working.
I will soon optimize using this tool.
What must be matching? Inductance?
Original:
26 turns, 250 mm diameter, 0.4 mm wire: 1.215 mH
I computed this:
27 turns, 250 mm diameter, 0.71 mm wire: 1.178 mH
28 turns, 250 mm diameter, 0.71 mm wire: 1.263 mH
Is it correct?

Your calculations are incorrect. You have entered the diameter of the coil into the calculator instead of the radius.

[DreamOfMirrors]

Thank you very much, I made a horrible mistake!