Convert mill rate to percentage or back, then estimate property tax from market value, assessment ratio, and exemptions with taxable-value detail and tax-per-100,000 comparison.

One mill is $1 of tax per $1,000 of taxable assessed value, equivalent to 0.1%.

Mill Rate To Percentage Formula

The following formula is used to calculate the mill rate to percentage.

Percentage = Mill Rate / 10

Variables:

  • Percentage is the equivalent percentage of the mill rate (%)
  • Mill Rate is the tax rate levied per $1,000 of property value (mills)

To calculate the percentage from a mill rate, simply divide the mill rate by 10. This is because 1 mill is equivalent to 0.1% or 1/10 of a percent.

Mill Rate to Percentage Conversion Table (1 mill = 0.1%)
Mill Rate (mills) Percentage (%)
0.50.05
10.10
1.50.15
20.20
2.50.25
30.30
3.50.35
40.40
50.50
7.50.75
101.00
12.51.25
151.50
17.51.75
202.00
252.50
303.00
505.00
757.50
10010.00
*Formula: Percentage = Mill Rate ÷ 10. Conversely, Mill Rate = Percentage × 10.

What is a Mill Rate To Percentage?

A mill rate, also known as millage rate, is a tax rate used to calculate property taxes in many areas. It is expressed in mills, where one mill is equal to one-tenth of a cent or $1 per $1,000 of property value. To convert a mill rate to a percentage, you simply divide the mill rate by 10. For example, if the mill rate is 20, the equivalent tax rate would be 2 percent.