How to Calculate Biweekly Pay

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Biweekly Pay Calculator

Based on Annual Salary Based on Hourly Rate

How to Calculate Biweekly Pay

Biweekly pay means you receive a paycheck every two weeks, resulting in 26 pay periods per year. This is one of the most common payroll cycles used by employers in North America because it simplifies budgeting for employees while maintaining a consistent schedule for payroll departments.

The Biweekly Pay Formulas

Depending on whether you are an exempt (salaried) or non-exempt (hourly) employee, the calculation differs slightly:

1. For Salaried Employees

If you know your total gross annual salary, the math is straightforward. Since there are 52 weeks in a year, paying every two weeks means there are 26 pay periods.

Formula: Annual Salary / 26 = Gross Biweekly Pay

Example: If you earn $52,000 per year:
$52,000 / 26 = $2,000 per paycheck.

2. For Hourly Employees

If you are paid by the hour, you must first calculate your weekly earnings and then double them for the two-week period.

Formula: (Hourly Rate × Hours Per Week) × 2 = Gross Biweekly Pay

Example: If you earn $20 per hour and work 40 hours per week:
($20 × 40) × 2 = $1,600 per paycheck.

Biweekly vs. Semimonthly: What's the Difference?

Feature Biweekly Semimonthly
Pay Frequency Every 2 weeks Twice per month (e.g., 1st and 15th)
Paychecks per Year 26 24
"Magic" Months 2 months a year have 3 checks Always 2 checks per month

Why the 26th Pay Period Matters

Because there are slightly more than 52 weeks in a year, biweekly schedules occasionally result in a "triple pay month." Twice a year, you will receive three paychecks in a single calendar month instead of two. For many employees, these "extra" checks are excellent opportunities for savings, debt repayment, or large purchases, as most monthly expenses (like rent or mortgage) are covered by the first two checks.

Understanding Deductions

Keep in mind that the calculator above provides your Gross Pay. This is the amount before taxes and deductions. To find your "take-home" or Net Pay, you must subtract:

  • Federal and State Income Tax
  • FICA (Social Security and Medicare)
  • Health Insurance premiums
  • Retirement contributions (401k/403b)
  • Garnishments or other voluntary deductions
function toggleInputs() { var mode = document.getElementById("calcMode").value; var salaryDiv = document.getElementById("salaryInputs"); var hourlyDiv = document.getElementById("hourlyInputs"); if (mode === "salary") { salaryDiv.classList.remove("hidden"); hourlyDiv.classList.add("hidden"); } else { salaryDiv.classList.add("hidden"); hourlyDiv.classList.remove("hidden"); } document.getElementById("biweeklyResult").innerHTML = ""; } function calculateBiweeklyPay() { var mode = document.getElementById("calcMode").value; var resultDiv = document.getElementById("biweeklyResult"); var grossBiweekly = 0; if (mode === "salary") { var annual = parseFloat(document.getElementById("annualSalary").value); if (isNaN(annual) || annual <= 0) { resultDiv.style.color = "#d93025"; resultDiv.innerHTML = "Please enter a valid annual salary amount."; return; } grossBiweekly = annual / 26; } else { var rate = parseFloat(document.getElementById("hourlyRate").value); var hours = parseFloat(document.getElementById("hoursPerWeek").value); if (isNaN(rate) || rate <= 0 || isNaN(hours) || hours <= 0) { resultDiv.style.color = "#d93025"; resultDiv.innerHTML = "Please enter valid hourly rate and hours."; return; } grossBiweekly = rate * hours * 2; } resultDiv.style.color = "#28a745"; resultDiv.innerHTML = "Your Estimated Gross Biweekly Pay: $" + grossBiweekly.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}) + ""; }

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