LogMAR values to MAR values Converter
Convert logMAR values to MAR values using MAR = 10^logMAR. The formula is MAR = 10^logMAR; 1 logMAR is 10 MAR.
The base-10 logarithm of MAR, often used in vision research and chart scoring.
Minimum angle of resolution, the reciprocal of decimal visual acuity.
Start with your value in logMAR values, then apply the formula below. It stays visible so you can catch rounding mistakes instead of just copying the output.
Use these values for notation comparison and documentation checks only. They do not diagnose vision problems or replace an eye exam.
Visual acuity notation is often rounded to chart lines, so the converted numeric value may be more precise than the original measurement. This page displays converted values with up to 3 decimal places by default.
| LogMAR values | MAR values |
|---|---|
| -0.3 logMAR | 0.501 MAR |
| -0.1 logMAR | 0.794 MAR |
| 0 logMAR | 1 MAR |
| 0.3 logMAR | 1.995 MAR |
| 0.6 logMAR | 3.981 MAR |
| 1 logMAR | 10 MAR |
Useful for comparing eye chart notation systems. Use the same formula with your exact input if the measurement needs to be documented.
Useful for translating research tables and clinical references. Use the same formula with your exact input if the measurement needs to be documented.
Useful for checking educational vision examples. Use the same formula with your exact input if the measurement needs to be documented.
How do I convert logMAR values to MAR values?
Enter the value in logMAR values and apply MAR = 10^logMAR. Round the MAR values result after the conversion, not before.
What is 1 logMAR value in MAR values?
1 logMAR equals 10 MAR with the current rounding setting. Keep more decimal places when the result feeds another calculation.
What is -0.3 logMAR in MAR?
-0.3 logMAR is 0.501 MAR. It appears in the lookup table so you can compare it with nearby amounts.
Can I convert MAR values back to logMAR values?
Yes. Use the reverse MAR values to LogMAR values converter if you need to go the other direction.
How accurate is this logMAR values to MAR values conversion?
The calculator runs the formula in your browser and rounds results to 3 decimal places by default. Visual acuity notation is often rounded to chart lines, so the converted numeric value may be more precise than the original measurement.