Electrician point-installation workload calculator

Calculate labor by room and total labor with your own figures.

Your numbers

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

Use labor by room and total labor to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Point work [room,point count,minutes per point,access multiplier]; enter JSON
[["Kitchen",8,20,1.2],["Hall",4,15,1]]
Labor by room (hours, JSON)
{"Hall":1,"Kitchen":3.2}
Total labor (hours)
4.2

Try another scenario

Point work [room,point count,minutes per point,access multiplier]; enter JSON
[["Kitchen",10,25,1.1],["Hall",5,20,1.2]]
Labor by room (hours, JSON)
{"Hall":2,"Kitchen":4.58333333333}
Total labor (hours)
6.583333
Calculation method

Calculation method

Labor by room (hours, JSON)

Sum point count×measured minutes×access multiplier/60 grouped by room.

Total labor (hours)

Sum all point work hours.

Symbols and units
a
Point work [room,point count,minutes per point,access multiplier]; enter JSON

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

  • Measured labor arithmetic only; no electrical design, compliance or competence inference. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. All numeric values must be finite. Lists contain at most 100 records; required lists must be nonempty. Rates, probabilities and fractions are entered as fractions, not percentages; fractions must be between 0 and 1. Use a single consistent user-selected currency for all amounts; no exchange-rate conversion.
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