OT: Bathroom scale vs. Gym scale…

e5fdny

Heisman
Nov 11, 2002
113,720
52,377
102
Why do they differ?

I zero/adjust them both to 0. I then put a 5lb dumbbell on each and they both say 5lbs.

But my bathroom scale (digital/solar) says I am ~10lbs more than the one at the gym (the type you’d see in drs. office - dial/mechanical). 🤷‍♂️
 

Source

All-American
Aug 1, 2001
11,228
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After a workout, wouldn't your body lose water and you would weigh less than at home?
 

WhiteBus

Heisman
Oct 4, 2011
39,358
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I do it (the gym one) right when I get there.
I'm going to guess the one at the gym needs an adjustment. At the gym 100+ people jump on that thing every day. It's got to be off as it is mechanical and takes a beating. I recently noticed that at the doctor's and emergency room the scales are similar looking to the mechanical ones but they are all new electric scales.
 

e5fdny

Heisman
Nov 11, 2002
113,720
52,377
102
I'm going to guess the one at the gym needs an adjustment. At the gym 100+ people jump on that thing every day. It's got to be off as it is mechanical and takes a beating. I recently noticed that at the doctor's and emergency room the scales are similar looking to the mechanical ones but they are all new electric scales.
That’s what I figured too. But I do make the adjustments to zero it out.
Also the margin of error may not be that big the 5 lb dumb bell, but assuming you weigh more than 5 lbs, the difference is exaggerated.
I’ve gone as high as a 25lb dumbbell and plates to see if that could be the issue for both.
Take the lower number.
Of course. Always. LOL

And that’s the one at the gym.
 

Source

All-American
Aug 1, 2001
11,228
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That’s what I figured too. But I do make the adjustments to zero it out. I’ve gone as high as a 25lb dumbbell and plates to see if that could be the issue for both.

Of course. Always. LOL And that’s the one at the gym.
Or you can wait until the prices drop to the moon and weigh yourself there. You'd slim down to 30 or 40 pounds.
 

GoodOl'Rutgers

Heisman
Sep 11, 2006
123,974
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Also the margin of error may not be that big the 5 lb dumb bell, but assuming you weigh more than 5 lbs, the difference is exaggerated.
^^^This is it^^^
there is a sweet spot where it is accurate and the closer you are to the top or bottom of what it could measure the more likely and severity of an error. Heck, your bathroom scale could be 5 pounds off heavy while the gym is 5 pounds off on the light side.
 

Rufaninga

All-Conference
Oct 8, 2010
3,873
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How close in time did you take both measurements? Weight can fluctuate throughout the day
 

GoodOl'Rutgers

Heisman
Sep 11, 2006
123,974
19,585
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The camera adds 10 pounds to you.
ahhhh.. so someone put a hidden camera in his bathroom!
 

RUschool

Heisman
Jan 23, 2004
49,910
14,001
78
Why do they differ?

I zero/adjust them both to 0. I then put a 5lb dumbbell on each and they both say 5lbs.

But my bathroom scale (digital/solar) says I am ~10lbs more than the one at the gym (the type you’d see in drs. office - dial/mechanical). 🤷‍♂️
Depends on when you weight yourself during the day. My weight can fluctuate by 3-4 pounds in a day. Clothing and watch can add another 2-3 pounds. 10 pounds might be too much. Your lightest weight would be after you wake up since you didn’t eat for several hours. I can lose a pound a day but I don’t eat breakfast and cut calories to around 1,200 A day.
 

RU4Real

Heisman
Jul 25, 2001
50,955
30,733
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Scales with springs in them (i.e. the gym scale) are prone to error because the spring tension isn't completely linear. I would trust the bathroom scale more, assuming it's digital and so uses strain gauges.

My doctor's office always shows me to be about 5 lb more than my bathroom scale.
 
Dec 17, 2008
45,215
16,775
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My weight can fluctuate as much as 5-6 pounds up or down in a day and I think that’s normal. I’m using the same scale though, not different scales.

I actually prefer it to be higher than lower (I’m not overweight) because if I’m losing too much I wonder if anything is wrong lol.