I need to express blood pressure in terms of kPa. The conversion is 1kPa - 7.5mmHg, or .133 kPa - 1mmHg, but how would this be expressed? Just kPa subsituting mmHg, ie kPa/kPa?

If 1 mmHg = 0.133 kPa, how much kPa would you think 120 mmHg (120 times 1 mmHg) equal? Not sure if I really get your question but perhaps you´re simply making the question harder than it is.

Not sure if I really get your question but perhaps you´re simply making the question harder than it is.

 

Am not making it harder than it is, unfortunately I'm not very good at saying what I mean...

 

I'm trying to ask 'would I simply convert the equations and express it in the same way blood pressure is expressed, or would it be written out in a different format? ie bp is written out 120/80. Substituted that would be 15.96/10.64, I'm just wondering if that's the correct format, 15.96/10.64, or should it be expressed differently ie 15.96kPa / 10.64kPa or do the two somehow combine...?' That any better? Is not the equation I'm after, simply the lay out of it.

Strictly speaking (from the physics point of view) ommiting the units is plain dead wrong. It is sometimes done when the units are obvious like in medicine where mmHg simply is the unit normally used for blood pressure. Therefore ...

 

Substituted that would be 15.96/10.64, I'm just wondering if that's the correct format, [...']

... is not a good idea. Of course, with a little thinking you might realize that the numbers are most certainly not mmHg but that doesn´t help too much.

 

or should it be expressed differently ie 15.96kPa / 10.64kPa

That´s how I´d write it.