The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm) For Inch versions,
directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version.
Drop Down Menus have M for Metric Versions.
Take a measurement from plan or on-screen image and enter it and the actual length it represents to calculate the scale.
For an on-screen image, measure the known dimension of an object in the image (eg: a wheel diameter).
Measure at Scale
Measured Length
Scale
1 :
Length
Measure at Scale From On-screen Image
Use a full scale ruler to measure a known measurement from an image on-screen. In the Calculate Scale dialog, enter this measurement into
Scaled Length and the actual full scale measurement into
Actual Length. Hit Calculate Scale to calculate the scale.
Enter the scale into the lower Measure at Scale dialog. Now, measure any length from screen image or plan, enter into Measured Length
and hit Calculate Length to calculate the actual full scale length.
Inch Fraction To Decimal Inch
=
If scaling from an on-screen image, you can enlarge the image on the screen for more accurate measurements. Hold down the CTRL key and hit
+ to enlarge, - to decrease size and 0 to re-set to 100% (normal).
Scaling Inch Fractions
If you're working at a small scale, and the calculators don't go small enough, you can scale up the measurements for the calculator inputs, then scale down the results.
This is easy with Metric, where you can scale up by multiplying input dimensions by 10, enter into the calculator then scale the results back down by dividing by 10.
With Inch Fractions it's a bit more difficult to scale. Use this calculator to scale your Inch dimensions with Fractions up and down.
Scale : 1Actual
Scaled
at Scale =
Try it out
From the image below, measure the front wheel rim diameter directly from your screen.
It's easier to measure if you place a sheet of paper on the screen, mark the dimesion with a pen, then measure the dimension from the paper.
Assume the actual full size measurement of the rim is 18" or 457mm.
Enter the rim screen measurement into Scaled Length and the actual length (457) into Actual Length and hit Calculate Scale.
Hit Transfer Measure at Scale to transfer the scale to the lower Measure at Scale input dialog.
Now measure any dimension on the bike image and enter into Measured Length to calculate the actual full scale dimension.
If you're making a scale model, divide the full scale dimension by your model scale, to find dimensions for the parts on your model. (eg: 10:1)
See also: Measure at Scale From Image and Printable Scale Rulers
Size
If scaling from an on-screen image, you can enlarge the image on the screen for more accurate measurements. Hold down the CTRL key and hit
+ to enlarge, - to decrease size and 0 to re-set to 100% (normal).
?
Select output Fraction Precision, Decimal Inch or Metric mm. Select and Re-Calculate to display.
Fraction Precision
All Inch inputs and dimensions are actual physical finished sizes(unless otherwise noted)
All Metric Inputs in Millimetres(unless otherwise noted)
If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - theres dust in the spray mist too!
How should we spell it?
Results
What do we think? - They're 2 different things:
A Meter is a device to measure things - like a Volt Meter or a Parking Meter
A Metre is about 3'-3~3/8"
Although diameter and perimeter as measurements - don't seem to fit very well
If the US ever goes Metric, you'll be able to use a Meter to measure Meters - A Meter Meter
(And when we go back to the moon, let's go Metric, ay?)
Built something using our calculators?
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