How to Use the Salary Calculator
This calculator handles three salary scenarios: convert an hourly wage to an annual salary, convert an annual salary to an hourly wage, and estimate take-home pay after tax. All calculations use exact decimal arithmetic.
Calculation Modes
Hourly to Salary
Enter your hourly rate, hours per week, and weeks per year. The calculator computes your annual salary.
Formula: Annual = Hourly × Hours/Week × Weeks/Year
Example: $28/hour, 40 hours/week, 52 weeks/year
- Hourly Rate: 28
- Hours per Week: 40
- Weeks per Year: 52
- Annual Salary: 58,240
- Monthly Salary: 4,853.3333
- Weekly Salary: 1,120
After calculating, a salary breakdown table shows your hourly rate, work schedule, annual salary (highlighted), monthly salary, and weekly salary.
Example: $18.50/hour, 35 hours/week, 50 weeks/year
- Hourly Rate: 18.50
- Hours per Week: 35
- Weeks per Year: 50
- Annual Salary: 32,375
- Monthly Salary: 2,697.9167
- Weekly Salary: 647.5
Salary to Hourly
Enter your annual salary, hours per week, and weeks per year. The calculator computes your hourly wage.
Formula: Hourly = Annual / (Hours/Week × Weeks/Year)
Example: $75,000/year, 40 hours/week, 52 weeks/year
- Annual Salary: 75000
- Hours per Week: 40
- Weeks per Year: 52
- Hourly Rate: 36.057692
- Monthly Salary: 6,250
- Weekly Salary: 1,442.3077
After calculating, an hourly rate breakdown table shows your annual salary, work schedule, hourly rate (highlighted), monthly salary, and weekly salary.
Example: $52,000/year, 45 hours/week, 48 weeks/year
- Annual Salary: 52000
- Hours per Week: 45
- Weeks per Year: 48
- Hourly Rate: 24.074074
- Monthly Salary: 4,333.3333
- Weekly Salary: 1,083.3333
Take Home
Enter your gross annual income and tax rate. The calculator computes your net income after tax.
Formula: Net = Gross × (1 − Tax Rate / 100)
Example: $65,000 gross income, 22% tax rate
- Gross Annual Income: 65000
- Tax Rate: 22
- Net Annual Income: 50,700
- Tax Deduction: 14,300
- Gross Monthly: 5,416.6667
- Tax Monthly: 1,191.6667
- Net Monthly: 4,225
After calculating, two tables appear. The annual breakdown shows gross annual income, tax rate, tax deduction (in red), and net annual income (in green, highlighted). The monthly breakdown shows gross monthly, tax monthly (in red), and net monthly (in green).
Example: $85,000 gross income, 18% tax rate
- Gross Annual Income: 85000
- Tax Rate: 18
- Net Annual Income: 69,700
- Tax Deduction: 15,300
- Gross Monthly: 7,083.3333
- Tax Monthly: 1,275
- Net Monthly: 5,808.3333
Precision and Notation Settings
Use the settings bar above the tabs to control how results display:
- Decimal places: Adjust from 0 to 16 decimal places (default is 8)
- Notation: Switch between auto, fixed, exponential, and engineering notation (default is auto)
Your decimal places and notation settings save to your browser automatically. When you return to this calculator, your last chosen format loads without needing to adjust it again.
Common Use Cases
Comparing Job Offers
Offer A is $30/hour at 40 hours/week for 52 weeks. Offer B is $62,000/year salary:
- Switch to Hourly to Salary
- Enter 30 as Hourly Rate, 40 as Hours per Week, 52 as Weeks per Year
- Annual Salary: 62,400
- Offer A pays $400 more per year
Evaluating a Freelance Rate
A client offers $45/hour for 30 hours/week, 48 weeks/year:
- Switch to Hourly to Salary
- Enter 45, 30, 48
- Annual Salary: 64,800, Monthly Salary: 5,400
- Compare against your current salary to decide
Budgeting Monthly Expenses
You earn $72,000/year and estimate a 20% effective tax rate:
- Switch to Take Home
- Enter 72000 as Gross Annual Income
- Enter 20 as Tax Rate
- Net Annual Income: 57,600
- Net Monthly: 4,800
- Use the monthly figure for your budget
Negotiating a Raise
You currently make $55,000/year working 40 hours/week, 50 weeks/year:
- Switch to Salary to Hourly
- Enter 55000 as Annual Salary, 40 as Hours per Week, 50 as Weeks per Year
- Hourly Rate: 27.5
- Use this to negotiate an hourly contract rate or compare with other offers
Tips for Accurate Calculations
- Use realistic weeks per year: Enter 50 instead of 52 to account for unpaid time off
- Hours per week affects your rate: A $52,000 salary at 40 hours/week is $25/hour, but at 50 hours/week it is $20/hour
- Tax rate is a simplification: Real taxes have brackets and deductions. Use this as an estimate, not tax advice
- Monthly is always annual divided by 12: The calculator uses 12 months regardless of weeks worked
- All values must be positive: Zero or negative rates, hours, weeks, or incomes are rejected
- Each mode shows one primary result: Annual Salary, Hourly Rate, or Net Annual Income
Troubleshooting
Required
This appears when a field is left empty. Enter a value in all required fields before calculating.
Hourly rate must be positive
Enter a positive hourly wage. Zero or negative rates are not valid.
Annual salary must be positive
Enter a positive yearly salary amount.
Gross income must be positive
Enter a positive gross annual income.
Hours per week must be positive
Enter a positive number of hours worked per week.
Weeks per year must be positive
Enter a positive number of weeks worked per year.
Tax rate cannot be negative
Tax rates must be zero or positive. Negative tax rates are not valid.
Breakdown table not appearing
The details section renders after a successful calculation with no validation errors. Check that all required inputs are filled and valid, then click Calculate.