What is Paycheck Calculator?
How It Works
Select your calculation mode: Hourly to Salary or Salary to Hourly. Enter your rate, hours per week, and weeks per year. The calculator computes your gross annual, monthly, biweekly, and weekly pay. Then, based on your filing status and state, it applies 2025 US federal tax brackets and standard deductions, Social Security (6.2%), and Medicare (1.45%) to estimate your net take-home pay. The results show a detailed breakdown of each deduction and your effective tax rate.
Formula
Hourly โ Salary: Annual = Hourly Rate ร Hours/Week ร Weeks/Year Salary โ Hourly: Hourly = Annual Salary รท 52 รท Hours/Week Federal Tax = Progressive brackets applied to (Gross - Standard Deduction) Social Security = 6.2% ร min(Gross, $176,100) Medicare = 1.45% ร Gross Net Pay = Gross - Federal Tax - SS - Medicare - State Tax
Formula Explained
The conversion between hourly and salary is straightforward multiplication or division. The tax calculation uses progressive brackets โ you do not pay the highest rate on all your income, only on the portion that falls within each bracket. The standard deduction reduces your taxable income before brackets are applied. Social Security has a wage cap ($176,100 in 2025), meaning earnings above that threshold are not subject to the 6.2% tax. Medicare has no cap but adds a 0.9% surcharge on earnings above $200,000.
Example
Hourly rate: $30/hour, 40 hours/week, 52 weeks Gross annual: $30 ร 40 ร 52 = $62,400 Filing status: Single, Standard deduction: $15,000 Taxable income: $62,400 - $15,000 = $47,400 Federal tax: $5,451 (10% on first $11,925 + 12% on remainder) Social Security: $62,400 ร 6.2% = $3,869 Medicare: $62,400 ร 1.45% = $905 Estimated net annual: ~$52,175 (~$4,348/month)
Tips & Best Practices
- โWhen comparing job offers, always compare total compensation including benefits, not just salary or hourly rate.
- โIf you work overtime regularly, factor in the 1.5x rate for hours over 40 per week โ this significantly increases annual earnings.
- โConsider contributing to a 401(k) to reduce taxable income and effectively lower your tax bracket.
- โIf you freelance or have side income, set aside 25-30% for self-employment taxes in addition to income tax.
- โCheck if your state has a flat tax rate, progressive brackets, or no state income tax โ this makes a big difference in take-home pay.
Common Use Cases
- โขComparing a salary job offer against your current hourly wage
- โขBudgeting monthly expenses based on actual take-home pay
- โขNegotiating salary by understanding the hourly equivalent
- โขPlanning for freelance or contract work income after self-employment tax
- โขEstimating the value of overtime hours at 1.5x rate