FREE MONTHLY INCOME CALCULATOR
This monthly income calculator converts hourly, daily, weekly, or annual pay into monthly earnings — with adjustable hours and days per week.
What is a monthly income calculator?
A monthly income calculator converts your pay from one period — hourly, daily, weekly, or yearly — into a monthly equivalent. Whether you receive an hourly wage, a daily rate, or an annual salary, this tool shows you exactly how much you earn each month before taxes and deductions.
Converting income into a monthly amount makes it easier to budget for recurring expenses, compare job offers with different pay structures, and plan for savings goals. It is especially useful for team members who work variable schedules or part-time hours.
How to calculate monthly income
The conversion depends on which pay period you start with. All formulas assume 52 working weeks per year and 12 months per year. The default schedule is 40 hours across 5 days, but you can adjust both.
Hourly to monthly
Monthly Income = Hourly Wage × Hours per Week × 52 ÷ 12
Multiply your hourly wage by the number of hours you work each week, then multiply by 52 (weeks in a year) and divide by 12 (months). For example, $15/hour × 40 hours × 52 ÷ 12 = $2,600/month.
Daily to monthly
Monthly Income = Daily Rate × Days per Week × 52 ÷ 12
Multiply your daily rate by the number of days you work per week, then follow the same annual-to-monthly conversion. For example, $120/day × 5 days × 52 ÷ 12 = $2,600/month.
Weekly to monthly
Monthly Income = Weekly Pay × 52 ÷ 12
Multiply your weekly pay by 52 to get the annual total, then divide by 12. For example, $600/week × 52 ÷ 12 = $2,600/month.
Annual to monthly
Monthly Income = Annual Salary ÷ 12
The simplest conversion — divide your annual salary by 12. For example, $60,000/year ÷ 12 = $5,000/month.
Why use 52 weeks instead of 4 weeks per month?
A common mistake is multiplying weekly pay by 4 to estimate monthly income. While quick, this method underestimates your true monthly earnings by approximately 8.7%. The year has 52 weeks — not 48 (4 × 12). Using the 52 ÷ 12 factor (approximately 4.333) gives an accurate monthly figure that matches your annual total.
| Method | Formula | Example ($600/week) | Accuracy |
|---|---|---|---|
| Multiply by 4 | Weekly × 4 | $2,400/month | Underestimates by 8.7% |
| 52 ÷ 12 method | Weekly × 52 ÷ 12 | $2,600/month | Accurate |
Monthly income examples
The table below shows monthly income for common hourly wages, assuming a standard 40-hour, 5-day work week.
| Hourly Wage | Weekly | Monthly | Yearly |
|---|---|---|---|
| $10.00 | $400.00 | $1,733.33 | $20,800.00 |
| $15.00 | $600.00 | $2,600.00 | $31,200.00 |
| $18.00 | $720.00 | $3,120.00 | $37,440.00 |
| $20.00 | $800.00 | $3,466.67 | $41,600.00 |
| $25.00 | $1,000.00 | $4,333.33 | $52,000.00 |
| $30.00 | $1,200.00 | $5,200.00 | $62,400.00 |
| $50.00 | $2,000.00 | $8,666.67 | $104,000.00 |
Who benefits from this calculator?
- Hourly team members — convert your wage into a monthly figure for rent, loan applications, and personal budgeting.
- Part-time workers — adjust hours and days per week to see accurate monthly income for non-standard schedules.
- Job seekers — compare offers quoted in different pay periods (hourly vs. salary) on a level monthly basis.
- Managers and HR teams — quickly estimate monthly labor costs for hiring decisions and workforce planning.
- Freelancers and contractors — project monthly revenue from daily or hourly client rates.
Gross vs. net monthly income
This calculator shows gross monthly income — your total earnings before any deductions. Your net (take-home) pay will be lower after accounting for:
- Federal income tax — based on your tax bracket and filing status.
- State and local income tax — varies by jurisdiction; some states have no income tax.
- FICA taxes — Social Security (6.2%) and Medicare (1.45%) for most W-2 team members.
- Pre-tax deductions — health insurance, 401(k) contributions, HSA, and other benefits.
For a more detailed take-home estimate, consult the IRS withholding estimator or your payroll system.
Key features
- Bidirectional conversion
- Enter your pay in any field — hourly, daily, weekly, or yearly — and all other fields update instantly, including the monthly result.
- Adjustable work schedule
- Toggle "Adjust number of hours and days" to customize hours per week (default 40) and days per week (default 5) for part-time, overtime, or compressed schedules.
- Real-time results
- All outputs update instantly as you type. No submit button — adjust any input and see the impact immediately.
- Persistent storage
- Your inputs are saved in local browser storage automatically. Return later to continue where you left off.
Important considerations
- This calculator provides gross income estimates. Actual take-home pay depends on tax withholdings, deductions, and benefits.
- The formulas assume a consistent work schedule throughout the year. Seasonal workers, variable-shift team members, or those with unpaid time off may see different actual monthly totals.
- Overtime pay is not automatically included. If you regularly work overtime, use your blended hourly rate or add overtime hours separately.
- This tool is for estimation and planning purposes. Always verify calculations with your payroll department or accountant for official financial decisions.
Helpful resources
- IRS Tax Withholding Estimator — check if your paycheck withholdings match your tax liability.
- DOL Minimum Wage Information — current federal and state minimum wage rates.
- Bureau of Labor Statistics Wage Data — national occupational employment and wage estimates.
Related free tools
- Salary to Hourly Calculator — convert annual salary to an hourly rate.
- Annual Income Calculator — convert hourly, weekly, or monthly pay into annual income.
- Pay Raise Calculator — see how a raise affects your hourly, weekly, and annual pay.
- Hours & Minutes Calculator — add up work hours for payroll and timesheets.
Automate payroll calculations with ShiftFlow
ShiftFlow makes it easy to track hours, calculate pay, manage team schedules, and export payroll-ready reports. Stop converting pay rates manually — start a free trial today.
Frequently asked questions
How do I calculate my monthly income from an hourly wage?
Multiply your hourly wage by the number of hours you work per week, then multiply by 52 (weeks per year) and divide by 12 (months per year). For example, $15/hour at 40 hours/week equals $15 × 40 × 52 ÷ 12 = $2,600 per month.
What is the formula for converting annual salary to monthly income?
Divide your annual salary by 12 to get your monthly income. For example, a $60,000 annual salary equals $60,000 ÷ 12 = $5,000 per month.
Is this monthly income calculator free?
Yes. This tool is 100% free — no sign-up, no download, no credit card. It runs entirely in your browser and your data never leaves your device.
What is my monthly income if I earn $18 per hour?
At $18/hour working 40 hours per week, your monthly income is $18 × 40 × 52 ÷ 12 = $3,120. If you work fewer or more hours, adjust the hours per week field for an accurate result.
How do I convert weekly pay to monthly income?
Multiply your weekly pay by 52 (the number of weeks in a year), then divide by 12 (the number of months). For example, $800/week equals $800 × 52 ÷ 12 = $3,466.67 per month.
Why does this calculator use 52 weeks instead of 4 weeks per month?
Using 52 weeks per year (then dividing by 12) accounts for the fact that most months have more than exactly 4 weeks. Multiplying weekly pay by 4 would undercount by about 8.7%, leading to an inaccurate annual estimate.
Can I adjust the hours and days per week?
Yes. Check the "Adjust number of hours and days" box to customize hours per week and days per week. This is useful for part-time team members, overtime schedules, or non-standard work weeks.
Is my data saved?
Yes. Your inputs are automatically saved in your browser's local storage. Return later to adjust your calculations without re-entering data. Click the Reset button to clear all saved values.
By converting income into a monthly amount, it becomes
easier to budget, compare offers, and plan recurring expenses.
Shiftflow integrates monthly income calculations into broader income tracking
and financial planning workflows.
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