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converting scale measurements 1:250 to 1:200

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  • converting scale measurements 1:250 to 1:200

    This is sort of the same thread - I've got a 1:250 scaled plan drawing and I need to know how to convert it to 1:200, or 1:100 so I can meaningfully read off the measurements
    (I've got a basic scale ruler that only does 1:5 1:50 1:10 1:100 1:20 1:200 and 1:500 1:1000).
    Help?!

  • #2
    converting scale measurements 1:250 to 1:200

    help! How do I convert the measurements on a plan from 1:250 (existing) to something I can read on my basic scale ruler? Thanks

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    • #3
      Re: scale conversions

      Originally posted by Unregistered
      This is sort of the same thread - I've got a 1:250 scaled plan drawing and I need to know how to convert it to 1:200, or 1:100 so I can meaningfully read off the measurements
      (I've got a basic scale ruler that only does 1:5 1:50 1:10 1:100 1:20 1:200 and 1:500 1:1000).
      Help?!
      A scale of 1:250 means 1 unit (any unit) on the drawing is 250 of the same unit in the real world, 1 cm on the drawing is 250 cm, or 2.5 m in the real world. So you could use a ruler and multiply by 250.

      Alternatively, you can use 1:50 scale and multiply values read by 5, or you could use the 1:500 scale and divide the values read by 2 (you could use the 1:200 scale and multiply by 1.125, but that sounds pretty inconvenient)

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      • #4
        Re: converting scale measurements 1:250 to 1:200

        Thank you! So basic, so logical but I couldn't figure it out at all. My thanks

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        • #5
          Re: converting scale measurements 1:250 to 1:200

          how do i convert a word scale to a line scale

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          • #6
            Re: scale conversions

            QUOTE=JohnS;53812]A scale of 1:250 means 1 unit (any unit) on the drawing is 250 of the same unit in the real world, 1 cm on the drawing is 250 cm, or 2.5 m in the real world. So you could use a ruler and multiply by 250.

            Alternatively, you can use 1:50 scale and multiply values read by 5, or you could use the 1:500 scale and divide the values read by 2 (you could use the 1:200 scale and multiply by 1.125, but that sounds pretty inconvenient)[/QUOTE]

            If I am looking at a plan that is A3 size with a scale that is 1:100 for an A1 size plan, what calculation can I use to scale this?

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            • #7
              Re: scale conversions

              Originally posted by Unregistered View Post
              QUOTE=JohnS;53812]A scale of 1:250 means 1 unit (any unit) on the drawing is 250 of the same unit in the real world, 1 cm on the drawing is 250 cm, or 2.5 m in the real world. So you could use a ruler and multiply by 250.

              Alternatively, you can use 1:50 scale and multiply values read by 5, or you could use the 1:500 scale and divide the values read by 2 (you could use the 1:200 scale and multiply by 1.125, but that sounds pretty inconvenient)
              If I am looking at a plan that is A3 size with a scale that is 1:100 for an A1 size plan, what calculation can I use to scale this?[/QUOTE]


              I think this is a duplicate, but 1:200

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              • #8
                I dont understan 1:5 scale etc

                in building a house what is 1:50, 1:100 etc mean
                Last edited by JohnS; 03-08-2010, 10:28 AM.

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                • #9
                  Re: converting scale measurements 1:250 to 1:200

                  Originally posted by Unregistered View Post
                  I dont understan 1:5 scale etc

                  in building a house what is 1:50, 1:100 etc mean
                  I merged two posts. A scale of 1:n means that 1 unit on the drawing equals n units in the real world. So 1" on the drawing would be 5" or 50" or 100" (depending on scale) in the project.

                  However, if a drawing is copied and either expanded or reduces, the scale changes, so the drawing should ALWAYS have a scale with units marked off.

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                  • #10
                    Re: scale conversions

                    I have a drawing with a 1:500 metric scale. What is the english conversion?

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                    • #11
                      Re: scale conversions

                      Originally posted by Unregistered View Post
                      I have a drawing with a 1:500 metric scale. What is the english conversion?
                      Metric: 1 cm on plan = 500 cm on project (5.0 m)
                      English: 1" on plan = 500" on project (41' 8")

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                      • #12
                        Re: scale conversions

                        Originally posted by Unregistered View Post
                        I have a drawing with a 1:500 metric scale. What is the english conversion?
                        One is to 500 :P

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                        • #13
                          Re: converting scale measurements 1:250 to 1:200

                          how do you convert a drawing that you have drawn in 1:50, to 1:5 ????

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                          • #14
                            Re: converting scale measurements 1:250 to 1:200

                            Originally posted by Unregistered View Post
                            how do you convert a drawing that you have drawn in 1:50, to 1:5 ????
                            You have to magnify linear dimensions on the drawing by 10 x.

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                            • #15
                              Re: converting scale measurements 1:250 to 1:200

                              how do I convert the scale when I am looking at a different size paper, like I get plans sent by email but are A1 size, but when I print it is A4

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