Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

• the most efficient way to navigate the Engineering ToolBox!

# Angle Calculator - Carpenter's Square

## Calculate angles with a straight board across carpenter's square.

For the carpenter's square the angle between length A and length B is 90 degrees.

### Carpenter's Square Calculator

Alpha (degrees)

Length A (m, mm, ft, in ..)

A (m, mm, ft, in ..)

B (m, mm, ft, in ..)

A (m, mm, ft, in ..)

C (m, mm, ft, in ..)

B (m, mm, ft, in ..)

C (m, mm, ft, in ..)

Alpha
(degrees)
Beta
(degrees)
A
(mm, in)
B
(mm, in)
C
(mm, in)
1 89 1 0.0175 1.00015
2 88 1 0.0349 1.00061
3 87 1 0.0524 1.0014
4 86 1 0.0699 1.0024
5 85 1 0.0875 1.0038
6 84 1 0.105 1.0055
7 83 1 0.123 1.0075
8 82 1 0.141 1.010
9 81 1 0.158 1.012
10 80 1 0.176 1.015
11 79 1 0.194 1.019
12 78 1 0.213 1.022
13 77 1 0.231 1.026
14 76 1 0.249 1.031
15 75 1 0.268 1.035
16 74 1 0.287 1.040
17 73 1 0.306 1.046
18 72 1 0.325 1.051
19 71 1 0.344 1.058
20 70 1 0.364 1.064
21 69 1 0.384 1.071
22 68 1 0.404 1.079
23 67 1 0.424 1.086
24 66 1 0.445 1.095
25 65 1 0.466 1.10
26 64 1 0.488 1.11
27 63 1 0.510 1.12
28 62 1 0.532 1.13
29 61 1 0.554 1.14
30 60 1 0.577 1.15
31 59 1 0.601 1.17
32 58 1 0.625 1.18
33 57 1 0.649 1.19
34 56 1 0.675 1.21
35 55 1 0.700 1.22
36 54 1 0.727 1.24
37 53 1 0.754 1.25
38 52 1 0.781 1.27
39 51 1 0.810 1.29
40 50 1 0.839 1.31
41 49 1 0.869 1.33
42 48 1 0.900 1.35
43 47 1 0.933 1.37
44 46 1 0.966 1.39
45 45 1 1 1.41

Any angle can easily be created with a carpenters square and a straight board as indicated in the figure and table above. The table is generic and can be used for all types of length units.

### Example - Alpha angle 22 degrees, units on carpenters square in cm

Form the table above:

A = 1

B = 0.404

C = 1.079

If the units on the carpenters square is cm and the length of the sides of the square is 50 cm - the most exact angle can be made by multiplying these values with 50:

A = 1 (50 cm)

= 50 cm

B = 0.404 (50 cm)

= 20.2 cm

C = 1.079 (50 cm)

= 53.92 cm

## Related Topics

• Mathematics - Mathematical rules and laws - numbers, areas, volumes, exponents, trigonometric functions and more.

## Search Engineering ToolBox

• the most efficient way to navigate the Engineering ToolBox!

## SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

## Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Temperature

oC
oF

Length

m
km
in
ft
yards
miles
naut miles

Area

m2
km2
in2
ft2
miles2
acres

Volume

m3
liters
in3
ft3
us gal

Weight

kgf
N
lbf

Velocity

m/s
km/h
ft/min
ft/s
mph
knots

Pressure

Pa (N/m2)
bar
mm H2O
kg/cm2
psi
inches H2O

Flow

m3/s
m3/h
US gpm
cfm

3 30