About Salary Conversion
Salaries are quoted in many different ways depending on the context. A job ad might say "$25 per hour", a contract might say "$4,200 per month", and a tax form asks for your "annual gross income". Being able to convert between them — quickly and correctly — matters for comparing offers, understanding deductions, budgeting monthly expenses, and checking that a new role is really a pay rise.
The mathematics of conversion is simple: every period has a fixed relationship to every other period once you know how many hours you work per week and how many weeks per year you work. The tricky part is being consistent about assumptions — 52 weeks or 52.14? Gross or net? With or without overtime?
The base conversions
| From | To | Formula |
|---|---|---|
| Hourly | Weekly | Hourly × Hours per week |
| Weekly | Annual | Weekly × Weeks per year |
| Annual | Monthly | Annual ÷ 12 |
| Annual | Bi-weekly | Annual ÷ 26 |
| Annual | Daily | Annual ÷ (Weeks × Days per week) |
Worked example: $25/hour at 40 hours/week
- Weekly = 25 × 40 = $1,000
- Annual = 1,000 × 52 = $52,000
- Monthly = 52,000 ÷ 12 = $4,333.33
- Bi-weekly = 52,000 ÷ 26 = $2,000
- Daily = 52,000 ÷ (52 × 5) = $200
At a glance, $25/hour sounds like a modest wage, but annualised it is over $52,000 — enough to compare directly with any salaried offer.
The 52 vs 52.14 weeks question
A year contains 52 weeks plus one day (or two in a leap year). Employers handle this differently:
| Method | Weeks/year | Used by |
|---|---|---|
| 52 weeks | 52.00 | Most salaried contracts, US payroll |
| 365 days ÷ 7 | 52.1429 | Some European payrolls |
| 365.25 days ÷ 7 | 52.1786 | Long-run averaging |
If your hourly rate is $25 and you work all 52 weeks, your annual is $52,000. If your employer pays for 52.14 weeks, your annual becomes $52,143 — about $143 more. The difference is small but real, especially over decades.
How many hours are in a work year?
| Schedule | Hours/week | Hours/year (52 weeks) |
|---|---|---|
| Full-time, 5 days | 40 | 2,080 |
| Full-time, 4 days | 32 | 1,664 |
| Part-time, 5 days | 25 | 1,300 |
| Part-time, 3 days | 15 | 780 |
| Full-time with 2 weeks unpaid | 40 | 2,000 |
Standard full-time employment in most countries is 2,080 hours per year (40 × 52). If you hear someone say "she makes $100k a year" and you want to know the hourly rate, divide by 2,080: $100,000 / 2,080 ≈ $48.08/hour.
Gross vs net — always the same confusion
Everything in this tool refers to gross pay — the money before any deductions. Your actual take-home pay (net) will be lower. The deductions vary enormously by country and can include:
- Income tax — progressive in most countries, ranging from 0% to over 50% marginal.
- Social insurance — FICA in the US, NIC in the UK, CPF in Singapore, EPF in Malaysia, and similar schemes elsewhere.
- Pension contributions — often mandatory, sometimes matched by the employer.
- Health insurance — deducted from payroll in the US, provided by the state elsewhere.
- Union dues, charitable giving, garnishments — voluntary or court-ordered.
As a rough rule, a US salaried employee at $60k takes home roughly 70–80% of gross. A UK employee at £50k takes home about 68–72% (including National Insurance). Use a tax calculator specific to your country to model net pay accurately.
Overtime pay rules
In many jurisdictions, hours worked above a threshold (usually 40 per week in the US, 48 in many EU countries) must be paid at a higher rate — typically 1.5× the base hourly rate, sometimes 2× for weekends or public holidays. Salaried employees classified as "exempt" in the US do not receive overtime; "non-exempt" employees do.
If you work 45 hours per week at $25/hour with a 1.5× overtime rule: the first 40 hours earn $1,000, and the extra 5 hours earn 5 × 25 × 1.5 = $187.50, for a weekly total of $1,187.50. Enable the overtime toggle in this tool to see this calculation for your own numbers.
Common use cases
Compare Job Offers
Convert hourly offers to annual for direct comparison.
Freelance Rate Setting
Work out the hourly rate equivalent to a target annual income.
Budgeting
Convert annual salary to monthly for household budgeting.
Negotiation
Check whether a raise in hourly terms matches a percentage offer.
Overtime Planning
See the true value of overtime hours before agreeing to them.
Career Planning
Compare part-time and full-time schedules on annual terms.
Privacy and accuracy
This salary calculator runs entirely in your browser. All calculations happen locally in JavaScript with no server calls. Nothing is uploaded, stored or logged — safe for confidential salary data and personal financial planning.