Plumbing fitting takeoff reconciliation calculator

Calculate shortage by fitting type and surplus by fitting type with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use shortage by fitting type and surplus by fitting type to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Required fitting quantities by type (counts)
12,8,4
Delivered quantities by type (counts)
10,10,4
Shortage by fitting type (JSON)
[2,0,0]
Surplus by fitting type (JSON)
[0,2,0]
Total fittings still required (count)
2

Try another scenario

Required fitting quantities by type (counts)
[13, 8, 4]
Delivered quantities by type (counts)
[10, 10, 4]
Shortage by fitting type (JSON)
[3,0,0]
Surplus by fitting type (JSON)
[0,2,0]
Total fittings still required (count)
3
Calculation method

Calculation method

Shortage by fitting type (JSON)

Compare required and delivered whole-item quantities separately for each fitting type.

Surplus by fitting type (JSON)

Compare required and delivered whole-item quantities separately for each fitting type.

Total fittings still required (count)

Compare required and delivered whole-item quantities separately for each fitting type.

Symbols and units
a
Required fitting quantities by type (counts)
b
Delivered quantities by type (counts)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • User-supplied measurements and assumptions; Compare required and delivered whole-item quantities separately for each fitting type. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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