Converting milligrams to teaspoons

how many teaspoons are in 1,500 milligrams?

In Health class, the teacher some how converted 1.262 mg of salt to 1 1/4 teaspoons of salt. I don't know how she did it, but she gave us a bunch of problems to do like that, that include: .859 to _
.004 to _
.44 to _
.05 to _
.078 to _
.04025 to _
.32 to _
.3 to _
My Health teacher, didn't have the time to explain this converting thing to us, so we are all stuck, and not one of us no what to do.
Thanks to whoever can help. This project I'm doing is due Friday, so please help me.

[JohnS]

Originally Posted by Katlyn

In Health class, the teacher some how converted 1.262 mg of salt to 1 1/4 teaspoons of salt. I don't know how she did it, but she gave us a bunch of problems to do like that, that include: .859 to _
.004 to _
.44 to _
.05 to _
.078 to _
.04025 to _
.32 to _
.3 to _
My Health teacher, didn't have the time to explain this converting thing to us, so we are all stuck, and not one of us no what to do.
Thanks to whoever can help. This project I'm doing is due Friday, so please help me.

Your teacher did it wrong. See post #6 for the correct density of salt. One teaspoon (5 mL) is about 6 g of salt or 6000 mg.

1.2 mg is about the size of a fly poop. What are the units associated with all those other numbers? What units are the answers supposed to be in.

On your teacher's original problem 1.262 mg x 1 teaspoon/6 g = 0.00021teaspoons. 1.262 g would be 0.21 teaspoons (just under 1/4). She needs to attend remedial metric system.

For any conversion of mass to volume, you have to look up in a reference or measure the density.