# Height and BMI

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Posts: 4,535 Member
When you're figuring your BMI, do you use your exact height, or estimate?

I'm 5'4.5" - I always use 5'4" when assessing my BMI. I was just wondering how it's usually (or supposed to be) done.

I know that a few pounds either way, and my BMI aren't big deals in the grand scheme of weight loss and fitness, and won't make or break my success. I'm just curious.

## Replies

• Posts: 174
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If the particular BMI calculator I am using that day lets me enter the weight to the 1/2 inch, I do so (some do, some don't). I am shooting for the middle of the range, so it doesn't really matter (however, I'm short so just on principle I take that 1/2 inch whenever I can!)
• Posts: 7,692 Member
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When you're figuring your BMI, do you use your exact height, or estimate?

I'm 5'4.5" - I always use 5'4" when assessing my BMI. I was just wondering how it's usually (or supposed to be) done.

I know that a few pounds either way, and my BMI aren't big deals in the grand scheme of weight loss and fitness, and won't make or break my success. I'm just curious.

I use my exact height. I'm not sure it really matters.

• Posts: 3,440 Member
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I'm 5'2.75"... I just use 5'3".
• Posts: 167 Member
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Use a metric scale
• Posts: 296 Member
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supermysza wrote: »
Use a metric scale
That actually makes sense. I type in 5 3.75 but 162 cm would be simpler.

• Posts: 4,535 Member
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supermysza wrote: »
Use a metric scale

Brilliant.

Thanks all
• Posts: 4,599 Member
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BMI is just an estimate anyway. Try to be accurate, but don't put undue weight (pun intended) in it.
• Posts: 10,049 Member
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Well, I just figure it myself rather than using an online calculator (weight in pounds/height in inches squared X 703). My height hasn't changed while I've been doing this, so I have the figure for the square of my height in inches memorized. My height is an even number, but if it weren't, I would use the fraction. I use half pounds for the weight.