Calculators - Estimators - Template Generators - Plans & Tools
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Print at 100% Printer Scale Print Templates at 100% Printer Scale   Printing Help

If you don't have a (correct) scale rule, you can print this page, fold the paper and use as a ruler. Print this page (at 100% printer scale) and check the 1:1 scale against a standard rule or tape. If it's not exact, mouse over Scale arrows to increase or decrease scale and re-print.

Scale 1 :
Scale Calculator
Set printer scale to 100%, margins to 0 and page orientation to Landscape.

If your plan's been re-printed or copied to different scale, use the Scale Calculator to find new scale.


Total Length

Alert Set printer scale to 100%
The rulers below are pre-set to commonly used scales. Print this page and compare the 1:1 scale against a standard tape or ruler.
Un-check 'Top Border' to remove ruler top line. Un-check 'Color' to print in black and white.

Calculate Scale Enter Inches Help
Measured Length (Plan)
Actual Length
Measure at Scale
Measured Length Inches
Scale 1 :
Full Scale
Scale from Plan or On-screen Image 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)
Measured Length

Scale from On-screen Image 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 Measured Length and the actual full scale measurement into Full Scale Length. Hit Calculate Scale to calculate the scale. This enters 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 to calculate the actual full scale length.

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).

Un-check Top Border to remove ruler top line. Once the paper is cut or folded, this can make it easier to align and read from the scaled plan.

Un-check 'Color' to print in black and white.

Check Total Inches to increment every inch, displaying the total inches instead of inches (1-12) in each foot. Select standard scales from the dropdown, or enter custom scale directly.

Strangely enough, because the paper scale rules are much thinner than conventional scale rules, it can be easier to take measurements from plans. Conventional scale rule edges are thicker than paper, so the calibrations sit above the plan surface. The paper scale rules sit flat, directly over measurements being scaled.

Slider Controls To fine tune Slider Controls click to select and use (cursor) keyboard keys.

Open new window containing only diagram images in current page ↓ This will better fit printed page. Printing to Scale Help
Print all diagrams on current page

Use your iPad or Android Tablet On-Site Your iPad, iPhone or Android Tablet or Phone is a valuable On-Site tool!
Lay your phone or tablet on an angled surface (roof ?) to directly measure angles and automatically calculate Roofing and Pitch Angle Apps.

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Greg Tarrant - - ph: (Australia) +61 7 40987645 - mob: 0438 165 753

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