Payroll staffing cost forecast calculator

Calculate gross by role over forecast and total forecast gross with your own figures.

Your numbers

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

Choose the currency for these amounts. Changing it keeps your numbers and does not convert exchange rates.

Use gross by role over forecast and total forecast gross to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Roles: name, regular staff, weekly minutes each, base $/hour, extra overtime minutes total/week, overtime multiplier
A,2,2400,10,120,1.5 B,1,1800,20,0,1
Forecast weeks
4
Extra employer cost applied to gross (%)
20
Gross by role over forecast ($)
A: 3320.00; B: 2400.00
Total forecast gross ($)
$5,720.00
Entered additional employer cost ($)
$1,144.00
Total forecast employment cost ($)
$6,864.00
Scheduled person-hours including overtime
448

Try another scenario

Roles: name, regular staff, weekly minutes each, base $/hour, extra overtime minutes total/week, overtime multiplier
A,2,2400,10,120,1.5 B,1,1800,20,0,1
Forecast weeks
2
Extra employer cost applied to gross (%)
20
Gross by role over forecast ($)
A: 1660.00; B: 1200.00
Total forecast gross ($)
$2,860.00
Entered additional employer cost ($)
$572.00
Total forecast employment cost ($)
$3,432.00
Scheduled person-hours including overtime
224
Calculation method

Calculation method

Gross by role over forecast ($)

Round weekly regular and overtime components per role, multiply the role weekly sum by forecast weeks.

Total forecast gross ($)

Sum role gross.

Entered additional employer cost ($)

Apply entered employer-cost percentage to total gross, rounded to US cents.

Total forecast employment cost ($)

Gross+entered employer cost.

Scheduled person-hours including overtime

Weeks×sum(staff×weekly regular minutes+role overtime minutes)/60.

Symbols and units
a
Roles: name, regular staff, weekly minutes each, base $/hour, extra overtime minutes total/week, overtime multiplier
b
Forecast weeks
c
Extra employer cost applied to gross (%)

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

Calculation steps and notation

sum(list) adds all entries in the list.

Assumptions & limits

Assumptions & limits

  • A role-level regular/overtime staffing-cost scenario with constant weekly inputs. Overtime classification, benefits and employer-cost components are supplied assumptions, not statutory calculations.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

US Department of Labor: pay/time recordkeeping background; actual rules vary ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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