Enter your monthly salary, normal weekly hours and overtime hours to find your true hourly rate and exactly how much overtime pay you should get — at 1.5×, 2× or any custom multiplier. Compare it with your payslip in seconds, right in your browser.
How to use the overtime calculator
- Enter your monthly salary (gross is fine for rate-checking; use net for take-home comparisons).
- Enter your normal working hours per week — 48 is the legal standard for factory and many service jobs in Pakistan and India; offices are often 40–45.
- Enter your overtime hours for the month, from your timesheet or attendance record.
- Choose the overtime multiplier your contract promises — 2× is the legal default in both countries, 1.5× is common in private companies.
- Compare the calculated overtime pay and month total against your payslip.
How is overtime pay calculated?
First the calculator finds your true hourly rate: monthly salary ÷ (weekly hours × 52 ÷ 12). The 52/12 converts weekly hours to a monthly average (about 4.33 weeks per month) — a step many rough calculations skip, which is why back-of-envelope overtime maths is so often wrong. Then: overtime pay = hourly rate × multiplier × overtime hours. Example: Rs 80,000/month at 48 hours/week gives an hourly rate of about Rs 385; 10 overtime hours at 2× = Rs 7,692. At 1.5× the same hours pay only Rs 5,769 — the multiplier choice is worth nearly Rs 2,000 on just 10 hours.
What multiplier does the law require?
In Pakistan, the Factories Act 1934 and provincial Shops and Establishments Ordinances generally require overtime at twice the ordinary rate for hours beyond the statutory limit (48 per week / 9 per day for factories). In India, the Factories Act 1948 similarly mandates double the ordinary wage for overtime. "Ordinary rate" means your basic wage plus allowances — not a reduced figure. In practice, many private-sector appointment letters specify 1.5×, and white-collar "manager" designations are often declared exempt. The law sets the floor; your contract sets your reality — read it, and keep a copy.
Common payslip tricks to watch for
Underpaid overtime usually hides in the hourly-rate step, not the multiplier. Watch for: the employer dividing salary by 30 days × 8 hours (240 hours) instead of your actual weekly hours — at a 48-hour week the honest divisor is about 208 hours, so the 240-hour trick cuts your rate by 13%. Watch for overtime calculated on basic salary only, excluding the allowances the law includes. Watch for "overtime" relabelled as a flat "extra duty allowance" that does not scale with hours. And watch for comp-off offered instead of pay where the law requires pay — time off is not always a legal substitute.
When do workers use this calculator?
Factory and security staff verify each month's overtime line before signing the wage register. Office workers check whether the "late sittings" culture is actually compensated. Job seekers compare two offers where one quotes a higher salary but demands longer standard hours — the hourly-rate box settles it. And anyone negotiating a new contract uses the figures to push the multiplier from 1.5× to the legal 2×.
What are the limitations?
The calculator assumes a single flat multiplier and uniform hours; real rosters have night-shift differentials, weekly-off rules and festival overtime at special rates that it does not model. It works on the salary figure you enter — if allowances are excluded from your legal "ordinary wage", adjust accordingly. It does not deduct tax on the overtime pay, and it cannot determine your legal entitlement — that depends on your province/state, industry and designation. For a dispute, the labour department or a labour lawyer beats any calculator.
Frequently asked questions
How do I calculate my hourly rate from a monthly salary?
Divide the monthly salary by (weekly hours × 52 ÷ 12). Example: Rs 80,000 at 48 hours/week = 80,000 ÷ 208 = about Rs 385/hour. The 52/12 (about 4.33) converts weekly hours to a monthly average — skipping it is the most common overtime calculation error.
Is overtime 1.5× or 2× in Pakistan?
The law (Factories Act and Shops and Establishments legislation) generally requires twice the ordinary rate for overtime. However, many private-sector contracts specify 1.5×, and enforcement varies. Your appointment letter is the document that governs your pay — check what it actually promises, and keep records of your overtime hours.
Are managers eligible for overtime?
Often not. Labour laws in both Pakistan and India typically exclude workers in managerial, supervisory or administrative roles from statutory overtime — which is why some employers inflate designations. If you do a worker's job under a manager's title, the designation alone may not legally exclude you, but proving it usually needs a labour lawyer.
Should overtime terms be in my appointment letter?
Yes — insist on it. The letter should state normal working hours, the overtime multiplier, and how overtime is recorded and approved. Verbal promises about overtime evaporate at payslip time; a written clause does not. If the letter is silent, ask HR to confirm the policy by email before you join.
Is overtime pay taxed?
Yes — overtime is part of your salary income and taxed like the rest of it. Withholding on the extra amount follows your normal payroll tax treatment. The calculator shows pre-tax figures; your payslip's overtime line will be slightly lower after tax.
Is my data uploaded or stored anywhere?
No. This calculator runs entirely in your browser — your salary and hours never leave your device, are never sent to a server, and are never stored. Closing the tab removes all trace.
Updated October 2026 · Built and tested by Sharjeel Tahir · How our tools are tested