FREE FULL-TIME EQUIVALENT CALCULATOR

What is a full-time equivalent (FTE)?

A full-time equivalent (FTE) is a unit of measurement that expresses workforce capacity as if every employee worked a standard full-time schedule. It lets you compare staffing levels across teams, departments, or organizations — even when the mix of full-time and part-time workers differs.

The core formula is:

FTE = Total Weekly Hours ÷ Standard Full-Time Hours per Person

Where the standard full-time hours is derived from your full-time data (Full-Time Hours ÷ Full-Time Employees). For example, if 10 full-time employees work a combined 400 hours per week and 10 part-time employees work a combined 200 hours per week, the total is 600 hours. The standard is 400 ÷ 10 = 40 hours per person. So FTE = 600 ÷ 40 = 15.0. Your 20 people deliver the same capacity as 15 full-time workers.

How to use this FTE calculator

This calculator converts raw employee counts and hours into a clear FTE number in seconds. Follow these steps:

1. Gather workforce data — collect employee counts and combined weekly hours for both full-time and part-time groups.
2. Enter full-time employees — type the headcount in the "Full-time Employees" field (e.g., 10).
3. Enter full-time hours — type the combined weekly hours for all full-time staff (e.g., 400 for ten 40-hour workers).
4. Enter part-time details — type the part-time headcount and their combined weekly hours.
5. Read the FTE result displayed instantly at the bottom of the calculator.
6. Compare scenarios — adjust inputs to model different hiring plans or schedule changes. Use the reset button to start fresh.

Key features

Instant FTE calculation

Results update in real time as you type — no "calculate" button needed.

Full-time and part-time inputs

Separate fields for full-time and part-time employee counts and hours give you a clear breakdown.

Automatic standard derivation

The calculator derives the standard full-time hours per person from your data (Full-Time Hours ÷ Full-Time Employees) rather than hardcoding 40 hours.

Part-time-only support

If you have no full-time employees, set the count to 0 and enter the benchmark hours in the full-time hours field. The calculator treats that value as the standard.

Input validation

Accepts only whole numbers between 0 and 99,999. Decimal points, negative signs, and exponent notation are blocked.

Local storage persistence

Your inputs are saved automatically in the browser so you can close the tab and return later.

No sign-up required

100% free, runs entirely in your browser, and never asks for an email address or credit card.

Worked examples

The table below shows how FTE changes with different team compositions:

FTE conversion reference

Quick reference for converting weekly hours to FTE (assuming a 40-hour full-time standard):

FTE and the Affordable Care Act (ACA)

Under the ACA, employers with 50 or more full-time equivalent employees are classified as Applicable Large Employers (ALEs) and must offer minimum essential health coverage or face penalties. The IRS uses a specific FTE formula for ACA compliance:

1. Count employees who average 30+ hours per week — each counts as 1.0 FTE.
2. Sum the monthly hours of all remaining (part-time) employees.
3. Divide the part-time total by 120 to get the part-time FTE.
4. Add full-time count + part-time FTE. If the result is 50 or more, the employer is an ALE.

This calculator gives you a quick approximation using weekly hours. For exact ACA compliance calculations, consult the IRS instructions for Form 1094-C/1095-C or speak with a benefits advisor.

Common uses for FTE

• Budgeting and forecasting — translate headcount into labor cost projections regardless of how hours are distributed.
• Benefits eligibility — determine ACA compliance thresholds and allocate benefits costs per FTE.
• Productivity benchmarking — compare revenue per FTE, output per FTE, or cost per FTE across teams or time periods.
• Grant and contract reporting — many government grants and contracts require FTE disclosures to justify funding.
• Staffing analysis — identify whether adding part-time positions or converting to full-time is more cost-effective.
• Headcount planning — translate project requirements into FTE needs so managers can plan hiring and scheduling.

FTE vs. headcount: what is the difference?

Headcount is the raw number of people on your roster. FTE normalizes that count by hours worked. A team of 20 people — 10 full-time at 40 hours and 10 part-time at 20 hours — has a headcount of 20 but an FTE of only 15. FTE gives a more accurate picture of actual workforce capacity, which is why it is the preferred metric for budgeting, compliance, and productivity analysis.

Who benefits from calculating FTE?

• HR professionals — standardize workforce reporting, track staffing levels over time, and ensure ACA compliance.
• Finance teams — budget labor costs accurately by normalizing headcount into FTE units.
• Operations managers — plan shift coverage and resource allocation based on true capacity rather than raw headcount.
• Small business owners — determine whether they cross ACA thresholds and make informed hiring decisions.
• Grant writers and administrators — report FTE accurately in funding applications and compliance documents.

Helpful resources

• IRS — Determining Applicable Large Employer Status — Official guidance on how the IRS calculates FTE for ACA compliance.
• DOL — Work Hours — U.S. Department of Labor resources on work hours, overtime, and scheduling standards.
• SHRM — How to Calculate FTE — The Society for Human Resource Management's guide to FTE measurement and best practices.

Other free tools you might find useful

Track weekly hours with the Time Card Calculator, convert salary to an hourly rate with the Salary to Hourly Calculator, or measure attendance trends with the Absence Percentage Calculator.

FTE calculator FAQ