Kai Roofing Calculator

Calculate the surface area of your roof

Success!

Roof area calculator

-

Cross Hipped

No pitch required (how )
Roof calculator - Cross Hipped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
l1
C1
C2
H
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* C is the ridge length of the roof
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

BH = EH = ...
AG = FG = ...
CI = DI = ...
AB = ...
BC = ...
AF = CD = ...
DE = ...
EF = ...
GH = ...
HI = ...
roof

Roof Surfaces

ABHG = ...
BCIH = ...
DEHI = ...
EFGH = ...
AGH = ...
CDI = ...

Roof Slopes

ABIHF = BCIH = DEHI = EFGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGF
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - Cross Hipped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
l1
C1
C2
H
Small dormer:
Lu 0
Lu 1
h
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* C is the ridge length of the roof
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

BH = EH = ...
AG = FG = ...
CI = DI = ...
AB = ...
BC = ...
AF = CD = ...
DE = ...
EF = ...
GH = ...
HI = ...
roof

Roof Surfaces

ABHG = ...
BCIH = ...
DEHI = ...
EFGH = ...
AGH = ...
CDI = ...

Roof Slopes

ABIHF = BCIH = DEHI = EFGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGF
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - Cross Hipped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
l1
C1
C2
H
Large dormer:
Lu 0
Lu 1
Lu 2
h
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* C is the ridge length of the roof
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

BH = EH = ...
AG = FG = ...
CI = DI = ...
AB = ...
BC = ...
AF = CD = ...
DE = ...
EF = ...
GH = ...
HI = ...
roof

Roof Surfaces

ABHG = ...
BCIH = ...
DEHI = ...
EFGH = ...
AGH = ...
CDI = ...

Roof Slopes

ABIHF = BCIH = DEHI = EFGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGF
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - Cross Hipped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
l1
C1
C2
H
Small dormer:
Lu 0
Lu 1
h
Small dormer 2:
Lu 3
Lu 4
h 2
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* C is the ridge length of the roof
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

BH = EH = ...
AG = FG = ...
CI = DI = ...
AB = ...
BC = ...
AF = CD = ...
DE = ...
EF = ...
GH = ...
HI = ...
roof

Roof Surfaces

ABHG = ...
BCIH = ...
DEHI = ...
EFGH = ...
AGH = ...
CDI = ...

Roof Slopes

ABIHF = BCIH = DEHI = EFGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGF
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - Cross Hipped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
l1
C1
C2
H
Large dormer:
Lu 0
Lu 1
Lu 2
h
Large dormer 2:
Lu 4
Lu 5
Lu 6
h 2
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* C is the ridge length of the roof
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

BH = EH = ...
AG = FG = ...
CI = DI = ...
AB = ...
BC = ...
AF = CD = ...
DE = ...
EF = ...
GH = ...
HI = ...
roof

Roof Surfaces

ABHG = ...
BCIH = ...
DEHI = ...
EFGH = ...
AGH = ...
CDI = ...

Roof Slopes

ABIHF = BCIH = DEHI = EFGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGF
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
Roof calculator - Cross Hipped
* This image is to clarify which is the rise of the roof (H) and the rise of the dormer (h). The image is for general informational purpose.
3D

Your roof dimensions:

L1
L2
l1
C1
C2
H
Large dormer:
Lu 0
Lu 1
Lu 2
h
Small dormer:
Lu 4
Lu 5
h 2
* L is the length of the roof
* l is the width of the roof
* H is the rise (height) of the roof (3D image)
* C is the ridge length of the roof
* For decimal dimensions, use the dot notation! (.)

Total Roof area:

...

Roof Lengths

BH = EH = ...
AG = FG = ...
CI = DI = ...
AB = ...
BC = ...
AF = CD = ...
DE = ...
EF = ...
GH = ...
HI = ...
roof

Roof Surfaces

ABHG = ...
BCIH = ...
DEHI = ...
EFGH = ...
AGH = ...
CDI = ...

Roof Slopes

ABIHF = BCIH = DEHI = EFGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGF
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12
AGH
  • Slope Grade = ... %
  • Angle = ... deg
  • Pitch = ... x12

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