How the conversions actually work
Every conversion in the calculator uses two settings: hours per week (default 40) and working weeks per year (default 52, the full year — set to 50 if you want to leave room for two unpaid weeks of vacation). The math is straightforward:
- Annual = hourly × hours_per_week × weeks_per_year — the bedrock formula. $25/hour × 40 hours/week × 52 weeks/year = $52,000/year.
- Monthly = annual ÷ 12 — calendar months, not "four weeks." A monthly salary of $4,333 is annualized at $52,000, not $52,000 ÷ 13 × 4 weeks.
- Bi-weekly = annual ÷ 26 — 26 pay periods per year. This is the standard US payroll cycle.
- Weekly = annual ÷ 52 — 52 weeks in a year. The actual number of paychecks depends on how the calendar aligns; some years a weekly worker gets 53 paydays.
- Daily = hourly × 8 — a standard 8-hour workday. Adjust hours-per-week to 35 (UK norm) or 37.5 (some European norms) to see how the daily and weekly numbers shift.
The "annual" trap: gross vs. take-home
This calculator works in gross figures — what your employer agrees to pay, before taxes and deductions. Your take-home pay (net) is typically 65–80% of gross, depending on:
- Federal/national income tax (US: 10–37%, UK: 0–45%, Germany: 0–45%, France: 0–45% progressive)
- State or local income tax (varies — California 1–13.3%, Texas 0%, New York 4–10.9%)
- Payroll taxes (US: 7.65% Social Security + Medicare, UK: 12% National Insurance, Germany: ~20% social contributions)
- Health insurance, retirement contributions, other deductions
For an honest after-tax estimate, run the gross number from this calculator through the tax brackets calculator for your country. The combination gives you the gross-to-net picture across both intervals.
Hours per week: not always 40
The standard 40-hour week is a US convention; much of the world works less:
- United States: 40 hours is the legal full-time benchmark (overtime kicks in above this for non-exempt employees).
- United Kingdom: 35-37.5 hours is typical for office work, capped at 48 hours per week under the Working Time Regulations.
- France: 35 hours is the legal full-time week, with overtime rules above that. The effective annual hours are around 1,500 (compared to 1,800+ in the US).
- Germany: 35-40 hours typical, with the IG Metall sector at 35 and many service sectors at 40.
Adjust the "Hours per week" field to match your actual contract. The hourly equivalent of a €60,000 salary at 35 hours/week is meaningfully higher than at 40 hours/week — €33/hour vs €28.85/hour.
Bonus, overtime and 13th-month pay
The calculator handles regular base pay only. For irregular payments:
- Annual bonus: Add it to your annual gross to get a "total comp" picture, but recognize the variability — bonuses are typically discretionary and aren\'t guaranteed by contract.
- Overtime: Most US employees earn 1.5× base hourly for hours over 40/week (FLSA). 10 hours of weekly OT at $30/hour adds 10 × $45 × 52 = $23,400 to annual.
- 13th-month pay: Standard in many European countries (Spain, Italy, Portugal, Germany via 13.\'s/14.\' Monatsgehalt). Add the equivalent of one month\'s salary to the annual figure if your contract includes it.
Working weeks: when to use 50 vs 52
Salaried employees usually use 52 weeks because vacation is paid time off (your salary doesn\'t change based on when you take it). Hourly workers without paid vacation should use fewer working weeks — typically 48 to 50 — to reflect the unpaid time off they actually take. The difference is real: a $25/hour worker at 50 weeks earns $50,000/year; at 52 weeks, $52,000. That $2,000 gap is what unpaid leave costs in annualized terms.