Free businesscalculators.
Pick a calculator and run the numbers in your browser. When you are ready, Spark automates the same math from live attendance, visits, stock, and pump shifts.
14 free calculators
Attendance & payroll
Payable days, daily wage, DA, EL, PF interest, incentives, attrition, and more for Spark Flash payroll.
- Attendance & Payroll Leakage CalculatorEstimate how much salary leaks when late marks, early exits, and unrecorded absences never reach payroll.
- Overtime & Shift-Cost CalculatorWork out overtime pay per employee and how much OT adds to your monthly payroll bill.
- Employee Absence-Cost CalculatorQuantify the monthly and annual cost of unplanned absences, including replacement and disruption.
- Monthly Payable Days CalculatorTurn present days, paid leave, and holidays into payable days before you run payroll in Spark Flash.
- Working Days in Month CalculatorCount working days after weekly offs and holidays. The same number Spark Flash uses for paid-day and daily-wage math.
- Daily Wage & Hourly Rate CalculatorSplit monthly salary into daily and hourly rates for LOP, half-day, and overtime entries in Spark Flash.
- Shift Time Card CalculatorConvert clock-in, clock-out, and break time into paid hours before payroll. Matches how Spark reads shift attendance.
- Earned Leave (EL) Balance CalculatorTrack earned-leave accrual, leave taken, and closing balance the way Spark Flash does after time-off approvals.
- Dearness Allowance (DA) CalculatorCalculate DA on basic salary and total pay before HRA or PF. Useful when checking payslip lines in Spark Flash.
- Variable Pay & Bonus CalculatorSplit fixed salary and variable pay by achievement percentage before monthly payout in Spark Flash.
- Sales Incentive CalculatorEstimate incentive on sales above target for field reps and pump staff. Spark Pulse and Flash can pay incentives from live numbers.
- EPF Interest CalculatorEstimate provident fund interest on opening balance and monthly contributions using the average-balance method.
- Team Attrition Rate CalculatorMeasure exits against average headcount and annualize attrition. Spark Flash staff registers show who joined and left.
- Payroll Calendar & Payslip GeneratorBuild a clean monthly payslip with pro-rated earnings and deductions. Print or save as PDF, no account needed.
2 free calculators
Field sales & visits
Store visit productivity and mileage reimbursement.
3 free calculators · 1 page
Petrol pumps
Shift shortage, dip to liters, and MS/HSD density at 15°C.
2 free calculators
Mobile distribution
Route profit and handset or accessory margin.
- Distributor Route Profitability CalculatorSee whether a delivery route pays for itself after fuel, staff, and trip costs. Built for mobile distributors.
- Mobile Retail Margin CalculatorGet a suggested selling price from cost price using handset and accessory margin guidelines used by mobile distributors.
1 free calculator
GST & invoicing
CGST + SGST splits for Indian invoices.
Need these numbers to update automatically from live attendance, visits, or pump shifts? Talk to us about Spark.
Need this built into your operation?
Tell us whether your teams work from one place or across routes. We will map the right Spark product and show how these numbers run automatically.
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Free to start · No payment required · Web + Android