convertimate Interest rates

Monthly rate to effective annual rate

Type a value in per month to get it in EAR instantly.

12.68EAR

That's 1.41× as high as a car loan, while a credit card is 1.73× higher. A thousand left at that rate for ten years becomes about 3,300.

What it means

What does that rate cost?

Information only, not financial advice. Real products add fees, and legal definitions of APR differ between countries.

The math

How to convert per month to EAR

Compounding is a power, not a multiplication: EAR = (1 + periodic rate)ⁿ − 1, with n periods in the year. A nominal APR is simply the periodic rate times n, which is why it always reads lower.

Example: 1 per month = 12.6825 EAR.

Every unit

Your rate in every form

Tables

per month to EAR conversion table

per month to EAR conversion table
per monthEAR
0.5 per month6.16778 EAR
1 per month12.6825 EAR
2 per month26.8242 EAR
3 per month42.5761 EAR
5 per month79.5856 EAR
7 per month125.219 EAR
10 per month213.843 EAR
15 per month435.025 EAR
20 per month791.61 EAR
30 per month2,229.81 EAR
50 per month12,874.6 EAR
EAR to per month conversion table
EAR to per month conversion table
EARper month
0.5 EAR0.0415715 per month
1 EAR0.0829538 per month
2 EAR0.165158 per month
3 EAR0.246627 per month
5 EAR0.407412 per month
7 EAR0.565415 per month
10 EAR0.797414 per month
15 EAR1.17149 per month
20 EAR1.53095 per month
30 EAR2.21045 per month
50 EAR3.43661 per month

Quick answers

Quick answers

How many EAR is 1 per month?
1 per month is 12.6825 EAR.
How many EAR is 10 per month?
10 per month is 213.843 EAR.

The units

About these units

Monthly rate (per month)

The rate charged each month, as cards quote it.

Effective annual rate (EAR)

What you actually pay or earn over a year, compounding included.

Learn more about rate units

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