Convert contact hours to Continuing Education Units (CEUs) instantly — including AOTA and ASHA CEUs — and see equivalent CPE credits, PDHs, and PDUs at a glance.
All standards use 1 CEU = 10 contact hours, but rounding rules differ
Standard CEU used by most providers and professions
Nursing, teaching, counseling, IACET-accredited courses
American Occupational Therapy Association
Occupational therapists, OT assistants (1 contact hour = 1.25 NBCOT PDUs)
American Speech-Language-Hearing Association
Speech-language pathologists, audiologists
How long was the learning activity, course, or event?
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💡 1 CEU = 10 contact hours. CPE credits use 50-minute units; PDHs and PDUs equal one contact hour each.
A Continuing Education Unit (CEU) is a standardized measure of participation in accredited continuing education programs. Under the IACET standard, one CEU equals ten contact hours of instruction. Professional associations like AOTA and ASHA issue their own CEUs using the same 10-hour basis, with ASHA reporting CEUs in 0.05 increments.
1 CEU = 10 contact hours of instruction
1 CEU = 12 CPE credits (each CPE credit is a 50-minute unit)
1 CEU = 10 PDHs (engineering) or 10 PDUs (project management)
Calculating CEU credits is straightforward once you know the standard formula. One Continuing Education Unit equals ten contact hours of participation in an organized continuing education experience, delivered under responsible sponsorship and qualified instruction.
CEUs = Contact Hours ÷ 10
1 CEU = 10 contact hours · 0.1 CEU = 1 contact hour
A 1-hour webinar = 0.1 CEU
A half-day (4-hour) workshop = 0.4 CEUs
A 2-day conference (16 instructional hours) = 1.6 CEUs
Only count actual instruction time — exclude breaks, meals, and registration
Different professions measure continuing education in different units. Use this table to convert CEUs to contact hours, CPE credits (accounting and finance, based on 50-minute units), PDHs (engineering Professional Development Hours), and PDUs (PMI Professional Development Units).
| CEUs | Contact Hours | CPE Credits | PDHs | PDUs |
|---|---|---|---|---|
| 0.1 | 1 | 1.2 | 1 | 1 |
| 0.5 | 5 | 6 | 5 | 5 |
| 1 | 10 | 12 | 10 | 10 |
| 2 | 20 | 24 | 20 | 20 |
| 5 | 50 | 60 | 50 | 50 |
| 10 | 100 | 120 | 100 | 100 |
Conversion basis: 1 CEU = 10 contact hours; 1 CPE credit = 50 minutes; 1 PDH = 1 contact hour; 1 PDU = 1 hour. Always confirm acceptance of converted credits with your licensing board or professional body.
The American Occupational Therapy Association follows the standard formula: 1 AOTA CEU = 10 contact hours, so a 1-hour course earns 0.1 AOTA CEU. Select the AOTA standard in the calculator above to compute your CEUs.
For NBCOT certification renewal, note that 1 contact hour = 1.25 NBCOT PDUs — so a course worth 0.1 AOTA CEU (1 hour) typically counts as 1.25 PDUs toward NBCOT renewal.
The American Speech-Language-Hearing Association also uses 1 ASHA CEU = 10 contact hours, but with a stricter reporting rule: ASHA CEUs are reported in 0.05 increments, always rounded down. The minimum reportable amount is 0.05 ASHA CEUs (30 minutes).
For example, a 1-hour-50-minute course is 1.833 hours = 0.1833 raw CEUs, which rounds down to 0.15 ASHA CEUs. Select the ASHA standard above and the calculator applies this rounding automatically.
Choose whether to convert hours to CEUs or CEUs to hours, then select your standard: General (IACET), AOTA, or ASHA
Input the contact hours and minutes of your course or event, or the number of CEUs you want to convert
See your CEUs alongside contact hours, CPE credits, PDHs, and PDUs — all calculated instantly in real time
Divide the total contact hours of instruction by 10. One CEU equals ten contact hours, so a 3-hour seminar earns 0.3 CEUs. Count only actual instructional time — breaks, meals, and registration periods are excluded.
One CEU equals 10 contact hours of participation in an accredited continuing education program. This standard was established by IACET (the International Accreditors for Continuing Education and Training) and is used by most professional associations, including AOTA and ASHA.
Multiply CEUs by 12. CPE credits (used in accounting and finance, per NASBA standards) are based on 50-minute units, so 1 CEU (10 hours = 600 minutes) equals 12 CPE credits. Always verify with your state board whether CEU-based courses qualify for CPE.
Multiply CEUs by 10. Both PDHs (Professional Development Hours, used in engineering licensure) and PDUs (Professional Development Units, used by PMI for project management certifications) equal one contact hour each, so 1 CEU = 10 PDHs = 10 PDUs.
ASHA CEUs use the same 1 CEU = 10 contact hours basis, but are reported in 0.05 increments and always rounded down. A 1-hour-50-minute course (0.1833 raw CEUs) is reported as 0.15 ASHA CEUs, and the minimum reportable amount is 0.05 CEUs (30 minutes of instruction).
No — they measure the same learning but at different scales. A contact hour is 60 minutes of instruction, while a CEU represents ten contact hours. Some professions (like nursing in many states) track contact hours directly, while others report CEUs.
Yes! This CEU calculator is completely free with no registration required. Use it to convert hours to CEUs, CEUs to hours, and to see CPE, PDH, and PDU equivalents for any course or event.
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