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Cleaning Job Math Center

Room work rates, crew hours, bids, supplies, laundry and operating budgets. 50 tools with purposes, formulas and worked examples.

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Formula, calculation steps & example

All 50 tools: purposes and formulas

Floor cleaning time from observed rate — Floor cleaning time from observed rate using your entered measurements and assumptions.
Result = (A ÷ B); A = Floor area ft², B = Observed production ft²/hour
Measured floor cleaning production — Measured floor cleaning production using your entered measurements and assumptions.
Result = (A ÷ B); A = Area cleaned ft², B = Hands-on hours
Repeated room cleaning time — Repeated room cleaning time using your entered measurements and assumptions.
Result = (A × B); A = Rooms, B = Observed minutes per room
Bathroom cleaning time estimate — Bathroom cleaning time estimate using your entered measurements and assumptions.
Result = (A × B); A = Bathrooms, B = Observed minutes per bathroom
Window pane cleaning time estimate — Window pane cleaning time estimate using your entered measurements and assumptions.
Result = (A × B); A = Panes, B = Observed minutes per pane
Stair tread cleaning time estimate — Stair tread cleaning time estimate using your entered measurements and assumptions.
Result = ((A × B) ÷ 60); A = Treads, B = Observed seconds per tread
Surface wiping time estimate — Surface wiping time estimate using your entered measurements and assumptions.
Result = (A ÷ B); A = Surface area ft², B = Observed ft²/hour
Carpet area work time estimate — Carpet area work time estimate using your entered measurements and assumptions.
Result = (A ÷ B); A = Carpet area ft², B = Observed ft²/hour
Kitchen task block estimate — Kitchen task block estimate using your entered measurements and assumptions.
Result = (A × B); A = Task blocks, B = Observed minutes per block
Touchpoint work time estimate — Touchpoint work time estimate using your entered measurements and assumptions.
Result = ((A × B) ÷ 60); A = Touchpoints, B = Observed seconds per point
Ideal equal-share crew duration — Ideal equal-share crew duration using your entered measurements and assumptions.
Result = (A ÷ B); A = Total person-hours, B = Workers
Crew person-hours from elapsed work — Crew person-hours from elapsed work using your entered measurements and assumptions.
Result = (A × B); A = Crew workers, B = Elapsed hours
Round-trip travel time — Round-trip travel time using your entered measurements and assumptions.
Result = (A × 2); A = One-way travel minutes
Turnover window remaining after travel — Turnover window remaining after travel using your entered measurements and assumptions.
Result = ((A - B) - C); A = Available minutes, B = Travel minutes, C = Setup minutes
Whole jobs in a work window — Whole jobs in a work window using your entered measurements and assumptions.
Result = floor((A ÷ B)); A = Available work minutes, B = Minutes per job including turnover
Work minutes after breaks — Work minutes after breaks using your entered measurements and assumptions.
Result = (A - B); A = Shift minutes, B = Break minutes
Arrival minutes from departure — Arrival minutes from departure using your entered measurements and assumptions.
Result = (A + B); A = Departure minutes after midnight, B = Travel minutes
Job duration signed overrun — Job duration signed overrun using your entered measurements and assumptions.
Result = (A - B); A = Actual minutes, B = Planned minutes
Setup share of onsite time — Setup share of onsite time using your entered measurements and assumptions.
Result = ((A ÷ B) × 100); A = Setup minutes, B = Total onsite minutes
Weekly repeated job person-hours — Weekly repeated job person-hours using your entered measurements and assumptions.
Result = (A × B); A = Hours per visit, B = Visits per week
Job direct labor cost — Job direct labor cost using your entered measurements and assumptions.
Result = (A × B); A = Person-hours, B = Hourly wage cost
Job labor burden allowance — Job labor burden allowance using your entered measurements and assumptions.
Result = (A × (B ÷ 100)); A = Direct labor cost, B = Entered burden %
Job supplies subtotal — Job supplies subtotal using your entered measurements and assumptions.
Result = ((A + B) + C); A = Cloths cost, B = Product cost, C = Disposables cost
Job mileage budget — Job mileage budget using your entered measurements and assumptions.
Result = (A × B); A = Round-trip miles, B = Entered cost per mile
Job overhead allocation — Job overhead allocation using your entered measurements and assumptions.
Result = (A ÷ B); A = Monthly overhead, B = Monthly jobs
Job cost total — Job cost total using your entered measurements and assumptions.
Result = (((A + B) + C) + D); A = Labor and burden, B = Supplies, C = Travel, D = Overhead
Job bid with markup — Job bid with markup using your entered measurements and assumptions.
Result = (A × (1 + (B ÷ 100))); A = Total job cost, B = Markup %
Job bid for target gross margin — Job bid for target gross margin using your entered measurements and assumptions.
Result = (A ÷ (1 - (B ÷ 100))); A = Total job cost, B = Target margin %
Job quote per floor area — Job quote per floor area using your entered measurements and assumptions.
Result = (A ÷ B); A = Job quote, B = Floor area ft²
Job revenue per person-hour — Job revenue per person-hour using your entered measurements and assumptions.
Result = (A ÷ B); A = Job revenue, B = Person-hours
Cloth allocation for rooms — Cloth allocation for rooms using your entered measurements and assumptions.
Result = (A × B); A = Rooms, B = Planned cloths per room
Whole laundry batches for cloths — Whole laundry batches for cloths using your entered measurements and assumptions.
Result = ceil((A ÷ B)); A = Used cloths, B = Cloths per batch
Sequential laundry machine time — Sequential laundry machine time using your entered measurements and assumptions.
Result = (A × B); A = Batches, B = Cycle minutes
Laundry machine measured energy — Laundry machine measured energy using your entered measurements and assumptions.
Result = (A × B); A = Measured kWh per cycle, B = Cycles
Laundry water budget — Laundry water budget using your entered measurements and assumptions.
Result = (A × B); A = Measured liters per cycle, B = Cycles
Trash liner allocation — Trash liner allocation using your entered measurements and assumptions.
Result = (A × B); A = Bins per visit, B = Visits
Trash liner supply budget — Trash liner supply budget using your entered measurements and assumptions.
Result = (A × B); A = Liners, B = Cost per liner
Measured product consumption per job — Measured product consumption per job using your entered measurements and assumptions.
Result = (A - B); A = Starting volume mL, B = Ending volume mL
Product cost from measured consumption — Product cost from measured consumption using your entered measurements and assumptions.
Result = ((A ÷ 1000) × B); A = Consumed product mL, B = Cost per liter
Job capacity from measured supply use — Job capacity from measured supply use using your entered measurements and assumptions.
Result = floor((A ÷ B)); A = Available product mL, B = Measured mL per job
Recurring visit revenue — Recurring visit revenue using your entered measurements and assumptions.
Result = (A × B); A = Revenue per visit, B = Visits in month
Recurring visit cost — Recurring visit cost using your entered measurements and assumptions.
Result = (A × B); A = Cost per visit, B = Visits in month
Monthly contribution before other costs — Monthly contribution before other costs using your entered measurements and assumptions.
Result = (A - B); A = Monthly revenue, B = Allocated monthly job costs
Completed job share — Completed job share using your entered measurements and assumptions.
Result = ((A ÷ B) × 100); A = Completed jobs, B = Scheduled jobs
Job rework share — Job rework share using your entered measurements and assumptions.
Result = ((A ÷ B) × 100); A = Jobs needing rework, B = Completed jobs
Rework person-hours — Rework person-hours using your entered measurements and assumptions.
Result = (A × B); A = Rework visits, B = Person-hours per rework
Before and after photo plan — Before and after photo plan using your entered measurements and assumptions.
Result = ((A × B) × C); A = Areas documented, B = Photos per area per stage, C = Stages
Inspected job share — Inspected job share using your entered measurements and assumptions.
Result = ((A ÷ B) × 100); A = Jobs inspected, B = Completed jobs
On-time job share — On-time job share using your entered measurements and assumptions.
Result = ((A ÷ B) × 100); A = On-time completions, B = Completed jobs
Recorded productive time share — Recorded productive time share using your entered measurements and assumptions.
Result = ((A ÷ B) × 100); A = Productive paid hours, B = Total paid hours

Definitions and source references

Unit definitions and selected model references:

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