About the Payroll Period Calculator
What is the Payroll Period Calculator?
This payroll period calculator sets out the dates of a pay period and the gross pay for it, including any loss-of-pay days.
Choose how the per-day rate is worked out: calendar days, a fixed 30 days or 26 working days.
How to use the Payroll Period Calculator
- Annual Gross Salary (₹) (sample: 12,00,000)
- Pay Frequency (sample: Monthly)
- Period Start Date (sample: 1 Oct 2026)
- Per-Day Rate Based On (sample: Calendar days in the period)
- Loss-of-Pay Days (sample: 0)
- Press Calculate Pay Period (results also refresh as you type). The result card shows the Gross Pay for the Period, along with Period, Calendar days, Weekdays (Mon–Fri) and Pay periods per year.
Formula used
Period pay = Annual salary ÷ Periods per year − LOP days × Per-day rate
- Per-day rate = period pay ÷ days in the period (or 30 / 26)
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Annual Gross Salary (₹) | 12,00,000 |
| Pay Frequency | Monthly |
| Period Start Date | 1 Oct 2026 |
| Per-Day Rate Based On | Calendar days in the period |
| Loss-of-Pay Days | 0 |
| Result | Value |
|---|---|
| Gross Pay for the Period | ₹1,00,000 |
| Period | Thu, 1 Oct 2026 – Sat, 31 Oct 2026 |
| Calendar days | 31 |
| Weekdays (Mon–Fri) | 22 |
| Pay periods per year | 12 |
| Full-period gross pay | ₹1,00,000 |
| Per-day rate | ₹3,226 |
| Loss-of-pay deduction | ₹0 |
Tips for using the Payroll Period Calculator
- Check your appointment letter – it states whether LOP uses calendar days or 30 days.
- Using 26 working days gives a higher per-day rate and so a larger LOP deduction.