Free calculator · Singapore · rates checked 5 Nov 2026
Overtime pay calculator
Monthly basic salary and overtime hours in; hourly basic rate and overtime pay out, with the MOM limits checked.
Monthly basic salary
Basic only — no allowances or OT
Overtime hours
In the month
Type of work
Workman = mainly manual work
Rate
1.5× is the legal minimum; your contract may pay more
Overtime pay this month
S$377.62
- Hourly basic rate12 × S$2,400 ÷ (52 × 44)
- S$12.59
- Overtime rate1.5× hourly basic
- S$18.88
- Hours
- 20
- Pay with overtimebasic + overtime, before CPF
- S$2,777.62
Questions
Who must be paid overtime?
Employees covered by Part IV of the Employment Act: workmen earning up to S$4,500 basic a month and other employees up to S$2,600. Others are paid overtime only if their contract says so.
Why 44 hours?
MOM's formula for the hourly basic rate of a monthly-rated employee is (12 × monthly basic) ÷ (52 × 44), where 44 is the normal working hours in a week.
Where the rule comes from
This calculator runs the same code as Cohumi payroll. It is a guide, not advice for a specific contract — the official page decides.
Cohumi does this on every payslip, for free.
Rosters, attendance, leave and claims free for any team size. Payroll from S$0.30 a payslip — CPF, SDL, SHG and overtime computed for you.