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Thread: Calculating 1 RM

  1. #1
    Senior Member soclydeza's Avatar
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    Calculating 1 RM

    How do you calculate your one rep max? I'm looking for the actual equation, not a calculator. thanks guys

  2. #2
    Strongman Tom Mutaffis's Avatar
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    Most of the 1RM calculators are not very accurate. There are many variables depending on the exercise and the individual.

    Here is one chart that I have found to be somewhat helpful though:

    http://www.topfitonline.com/chartmax.htm
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  3. #3
    Breaker of Skulls Guido's Avatar
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    Quote Originally Posted by soclydeza View Post
    How do you calculate your one rep max? I'm looking for the actual equation, not a calculator. thanks guys
    It's not going to be exact for everyone so therefore no equation is going to be perfect. The online calculators all use some sort of equation, anyway. One of the more accurate that I've found is here:

    http://www.timinvermont.com/fitness/orm.htm
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  4. #4
    I drink your milkshake twm's Avatar
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    it really depends on the individual, like the above have said.

    if your endurance sucks but your pressing/pulling strength is good, your 1RM can be decently higher than any calculator (which is just a formula) will estimate
    Last edited by twm; 12-21-2009 at 09:30 AM.

  5. #5
    Grammar Nazi BG5150's Avatar
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    You calculate it by trying it.
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  6. #6
    The Flyfisher rbtrout's Avatar
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    ^^^This. Calculating is OK, but you'll never really know until you try.
    Give chalk a chance.


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  7. #7
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    Quote Originally Posted by rbtrout View Post
    ^^^This. Calculating is OK, but you'll never really know until you try.
    How do you go about trying for your 1 RM?

    Do you just keep loading up the bar with more and more weight until you can only do 1 rep? On what day should you try for it? At what time in your workout do you try it? How?
    Last edited by Pure Water; 01-21-2010 at 06:13 PM.

  8. #8
    SFW! drew's Avatar
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    Calculate one rep max:
    1) Get under bar
    2) Lift bar
    3) Add some weight
    4) Repeat steps 1-3 until unable to complete step 2.
    5) Write down last weight successfully lifted. (Done)

    Stats: Age: 34 Weight: 205 Height: 5'6"
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  9. #9
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    Quote Originally Posted by drew View Post
    Calculate one rep max:
    1) Get under bar
    2) Lift bar
    3) Add some weight
    4) Repeat steps 1-3 until unable to complete step 2.
    5) Write down last weight successfully lifted. (Done)
    Cool, thanks.

  10. #10
    student of the game Runty's Avatar
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    Quote Originally Posted by drew View Post
    Calculate one rep max:
    1) Get under bar
    2) Lift bar
    3) Add some weight
    4) Repeat steps 1-3 until unable to complete step 2.
    5) Write down last weight successfully lifted. (Done)
    What about for deadlifting, how do you test that 1RM?
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  11. #11
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    Quote Originally Posted by Runty View Post
    What about for deadlifting, how do you test that 1RM?
    I'm pretty sure it's the same way as the Squat and Bench Press, isn't it?

  12. #12
    Michael KGM's Avatar
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    Quote Originally Posted by Pure Water View Post
    I'm pretty sure it's the same way as the Squat and Bench Press, isn't it?
    Except you don't get UNDER the bar as listed in step one
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