Annual Income Calculator (hourly, weekly, monthly pay to yearly)

Understanding the annual income calculator — concept and principle

This calculator converts pay from any period, hourly, daily, weekly, biweekly, semi-monthly, monthly or yearly, into annual income and back into the other periods. It also shows the hourly rate on the 2,087-hour year used in US federal payroll. Use it to compare job offers, budget, fill in loan or rental applications and estimate a salary from an hourly wage.

40 hours a week for 52 paid weeks is 2,080 hours, so $25 an hour is $52,000 a year before tax.

How it is calculated

Hourly: rate × hours per week × paid weeks.
Daily: rate × days per week × paid weeks.
Weekly: rate × paid weeks; biweekly: rate × 26; semi-monthly: rate × 24; monthly: rate × 12.
The other rows divide the annual figure: ÷ 12 per month, ÷ 26 every two weeks, ÷ paid weeks per week, and so on.
2,087-hour rate = annual income ÷ 2,087.

All amounts are gross, before tax and deductions, and exclude overtime and bonuses.

The principle

Annual income is simply the pay rate multiplied by how many times it is earned in a year. The tricky part is counting periods correctly: there are 26 biweekly paydays but 24 semi-monthly ones, and 52 weeks plus one or two extra days in a year. The US federal government uses a 2,087-hour divisor, 40 hours × the average number of weekdays per year (about 52.18 weeks), to turn an annual salary into an hourly rate.

Worked example

Default inputs: $25 per hour, 40 hours a week, 5 days, 52 paid weeks.

Annual income = 25 × 40 × 52 = $52,000.00.
Per month = 52,000 ÷ 12 = $4,333.33.
Every two weeks = 52,000 ÷ 26 = $2,000.00; per week = $1,000.00.
Per day = 1,000 ÷ 5 = $200.00; per hour = $25.00.
Hourly on a 2,087-hour year = 52,000 ÷ 2,087 ≈ $24.92.

Each point is the calculator re-run with only “Pay amount” changed; the gold point is the default example. Change the inputs above and this chart follows your numbers.

Pay amount	Annual income
6.25	$13,000.00
12.5	$26,000.00
18.8	$39,000.00
25	$52,000.00
31.2	$65,000.00
37.5	$78,000.00
50	$104,000.00

How to read the result

The annual figure is a gross number; your take-home pay will be lower after taxes and deductions. If you take unpaid leave, reduce the paid weeks. A rough rule: an hourly rate × 2,000 gives an approximate full-time annual salary (40 hours × 50 weeks), and $25 an hour is close to $50,000 to $52,000 a year depending on paid weeks.

Common mistakes

Confusing biweekly (26 payments) with semi-monthly (24 payments).
Multiplying a monthly amount by 4 to get a weekly amount backward; a month is about 4.33 weeks.
Counting unpaid holidays as paid weeks.
Comparing gross pay with someone else's net pay.

Keep in mind: These are gross figures. Taxes, social insurance, benefits and overtime rules vary by country and employer. This is not financial advice.

Frequently asked questions

How much is $25 an hour per year?

About $52,000 at 40 hours a week for 52 weeks.

Why does biweekly pay sometimes give an extra paycheck?

52 weeks give 26 paydays, so two months each year contain three paydays.

What is the 2,087-hour divisor?

The number of paid hours in an average US federal work year: 40 hours × about 52.18 weeks.

Sources: 5 U.S.C. § 5504(b); U.S. Office of Personnel Management, "Computing Hourly Rates of Pay Using the 2,087-Hour Divisor"

Checked 9 Nov 2026. Pay-period arithmetic (26 biweekly, 24 semi-monthly, 12 monthly pay periods). 2,087-hour divisor: 5 U.S.C. §5504(b) and U.S. Office of Personnel Management, fact sheet “Computing Hourly Rates of Pay Using the 2,087-Hour Divisor”.

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