Illinois Overtime Calculator (One Day Rest in Seven

Illinois Overtime & Labor Standards

Illinois overtime regulations combine federal FLSA standards with the state One Day Rest in Seven Act (ODRISA) administered by the Illinois Department of Labor (IDOL).

Core Illinois Overtime Formulas

• Regular Earnings: Regular Pay = Min(40, Regular Hours) × Hourly Rate

• Overtime Rate (1.5x Time-and-a-Half): Overtime Rate = Hourly Rate × 1.5

• Total Overtime Hours: Total OT Hours = Overtime Hours + 7th Consecutive Day Hours

• Total Overtime Pay: Overtime Pay = Total OT Hours × Overtime Rate

• Total Gross Pay: Gross Pay = Regular Pay + Overtime Pay

Key Provisions of ODRISA

• Mandatory 24 Hours Rest: Non-exempt employees must receive at least 24 consecutive hours of rest every calendar week.

• 20-Minute Meal Breaks: Employees working 7.5 continuous hours must receive an unpaid 20-minute meal break starting no later than 5 hours into the shift.

How to Use This Calculator

Enter your Regular Hourly Wage Rate (e.g. 22.00 in /hr), Regular Work Hours (Up to 40) (e.g. 40 in hrs), Weekly Overtime Hours (Exceeding 40) (e.g. 10 in hrs), and 7th Consecutive Day Hours Worked (e.g. 8 in hrs). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Formula Reference: Illinois Overtime Calculator (One Day Rest in Seven)

Input variables:

hourlyPayRateUsd — Regular Hourly Wage Rate

regularHoursWorked — Regular Work Hours (Up to 40)

weeklyOvertimeHoursWorked — Weekly Overtime Hours (Exceeding 40)

seventhDayWorkedHours — 7th Consecutive Day Hours Worked

Computed outputs:

regularEarningsUsd — Regular Straight-Time Earnings

timeAndHalfOvertimeUsd — 1.5x Overtime Premium Pay

totalGrossPayUsd — Total Gross Paycheck Earnings

complianceLaborNotes — ODRISA Statutory Labor Guidance

Mathematical relationships extracted from calculation logic:

regPay = reg * rate

otTotal = ot + day7

otPay = otTotal (rate 1.5)

totalGross = regPay + otPay

Standard: US DOL / FLSA federal employment standards

Worked Example

An employee earning 22.00/hr works 40 regular hours, 10 weekly overtime hours, and 8 hours on a 7th consecutive workday: Regular pay is 880.00, overtime pay is 594.00, yielding a total gross pay of 1,474.00 with full ODRISA compliance notes.

Understanding Your Result

Evaluate your result in the context of your specific use case and relevant industry standards or reference values. A single calculated result is a starting point — test two to three scenarios to understand how sensitive the outcome is to your key input assumptions. For high-stakes decisions, verify your result against a secondary source or subject-matter expert before acting.