Uric acid conversion: to convert uric acid from mmol/L to mg/dL, multiply by 16.81. If your lab reports uric acid in µmol/L (umol/L), divide by 59.48. For example, 0.48 mmol/L (480 µmol/L) = 8.07 mg/dL.
Uric Acid Calculator
Conversion settings
Tip: many laboratories (including most in Malaysia, Singapore, the UK and Australia) report uric acid in µmol/L. If your number is in the hundreds, such as 380, it is in µmol/L: tap µmol/L in the uric acid converter above.
Uric Acid Conversion Factor
The uric acid conversion factor comes from its molar mass, 168.11 g/mol. One millimole of uric acid weighs 168.11 mg, and a litre is 10 decilitres, so 1 mmol/L = 16.81 mg/dL. The same factors apply to serum uric acid, serum urate and blood uric acid (BUA).
| Convert | Uric acid formula | Example |
|---|---|---|
| mmol/L to mg/dL | mg/dL = mmol/L × 16.81 | 0.36 mmol/L = 6.05 mg/dL |
| mg/dL to mmol/L | mmol/L = mg/dL ÷ 16.81 (or × 0.0595) | 6 mg/dL = 0.357 mmol/L |
| µmol/L to mg/dL | mg/dL = µmol/L ÷ 59.48 (or × 0.01681) | 380 µmol/L = 6.39 mg/dL |
| mg/dL to µmol/L | µmol/L = mg/dL × 59.48 | 7 mg/dL = 416 µmol/L |
| mmol/L to µmol/L | µmol/L = mmol/L × 1,000 | 0.42 mmol/L = 420 µmol/L |
How to Convert Uric Acid mmol/L to mg/dL
- Check the unit on your report: mmol/L values are small (about 0.1–0.8), µmol/L values are in the hundreds (about 100–800).
- If it is in µmol/L, divide by 1,000 to get mmol/L (380 µmol/L = 0.38 mmol/L), or divide by 59.48 to go straight to mg/dL.
- Multiply mmol/L by 16.81 to get mg/dL.
Worked examples: 0.30 mmol/L × 16.81 = 5.04 mg/dL · 0.48 mmol/L × 16.81 = 8.07 mg/dL · 0.55 mmol/L × 16.81 = 9.25 mg/dL.
Uric Acid Conversion Chart: mmol/L to mg/dL
| Uric acid (mmol/L) | Uric acid (µmol/L) | Uric acid (mg/dL) |
|---|---|---|
| 0.10 mmol/L | 100 µmol/L | 1.68 mg/dL |
| 0.15 mmol/L | 150 µmol/L | 2.52 mg/dL |
| 0.20 mmol/L | 200 µmol/L | 3.36 mg/dL |
| 0.24 mmol/L | 240 µmol/L | 4.03 mg/dL |
| 0.25 mmol/L | 250 µmol/L | 4.20 mg/dL |
| 0.30 mmol/L | 300 µmol/L | 5.04 mg/dL |
| 0.35 mmol/L | 350 µmol/L | 5.88 mg/dL |
| 0.36 mmol/L | 360 µmol/L | 6.05 mg/dL |
| 0.40 mmol/L | 400 µmol/L | 6.72 mg/dL |
| 0.42 mmol/L | 420 µmol/L | 7.06 mg/dL |
| 0.45 mmol/L | 450 µmol/L | 7.56 mg/dL |
| 0.48 mmol/L | 480 µmol/L | 8.07 mg/dL |
| 0.50 mmol/L | 500 µmol/L | 8.41 mg/dL |
| 0.55 mmol/L | 550 µmol/L | 9.25 mg/dL |
| 0.60 mmol/L | 600 µmol/L | 10.09 mg/dL |
| 0.70 mmol/L | 700 µmol/L | 11.77 mg/dL |
| 0.80 mmol/L | 800 µmol/L | 13.45 mg/dL |
Uric Acid µmol/L to mg/dL (umol/L to mg/dL)
To convert uric acid from µmol/L (also written umol/L or micromol/L) to mg/dL, divide by 59.48. For example, 380 µmol/L uric acid = 6.39 mg/dL and 456 µmol/L = 7.67 mg/dL.
| Uric acid (µmol/L) | Uric acid (mmol/L) | Uric acid (mg/dL) |
|---|---|---|
| 150 µmol/L | 0.150 mmol/L | 2.52 mg/dL |
| 200 µmol/L | 0.200 mmol/L | 3.36 mg/dL |
| 250 µmol/L | 0.250 mmol/L | 4.20 mg/dL |
| 300 µmol/L | 0.300 mmol/L | 5.04 mg/dL |
| 350 µmol/L | 0.350 mmol/L | 5.88 mg/dL |
| 360 µmol/L | 0.360 mmol/L | 6.05 mg/dL |
| 380 µmol/L | 0.380 mmol/L | 6.39 mg/dL |
| 400 µmol/L | 0.400 mmol/L | 6.72 mg/dL |
| 420 µmol/L | 0.420 mmol/L | 7.06 mg/dL |
| 450 µmol/L | 0.450 mmol/L | 7.57 mg/dL |
| 456 µmol/L | 0.456 mmol/L | 7.67 mg/dL |
| 480 µmol/L | 0.480 mmol/L | 8.07 mg/dL |
| 500 µmol/L | 0.500 mmol/L | 8.41 mg/dL |
| 550 µmol/L | 0.550 mmol/L | 9.25 mg/dL |
| 600 µmol/L | 0.600 mmol/L | 10.09 mg/dL |
Uric Acid mg/dL to mmol/L Conversion
To convert uric acid from mg/dL to mmol/L, divide by 16.81 (or multiply by 0.0595). To get µmol/L, multiply mg/dL by 59.48. You can also use the uric acid mg/dL to mmol/L converter.
| Uric acid (mg/dL) | Uric acid (mmol/L) | Uric acid (µmol/L) |
|---|---|---|
| 2 mg/dL | 0.119 mmol/L | 119 µmol/L |
| 3 mg/dL | 0.178 mmol/L | 178 µmol/L |
| 4 mg/dL | 0.238 mmol/L | 238 µmol/L |
| 5 mg/dL | 0.297 mmol/L | 297 µmol/L |
| 6 mg/dL | 0.357 mmol/L | 357 µmol/L |
| 6.8 mg/dL | 0.404 mmol/L | 404 µmol/L |
| 7 mg/dL | 0.416 mmol/L | 416 µmol/L |
| 8 mg/dL | 0.476 mmol/L | 476 µmol/L |
| 9 mg/dL | 0.535 mmol/L | 535 µmol/L |
| 10 mg/dL | 0.595 mmol/L | 595 µmol/L |
| 12 mg/dL | 0.714 mmol/L | 714 µmol/L |
Normal Uric Acid Levels in mmol/L, µmol/L and mg/dL
Normal uric acid ranges vary between laboratories. Typical adult reference ranges and key thresholds are:
| Uric acid level | mmol/L | µmol/L | mg/dL |
|---|---|---|---|
| Normal range, men | 0.20 – 0.42 | 200 – 420 | 3.4 – 7.0 |
| Normal range, women | 0.14 – 0.36 | 140 – 360 | 2.4 – 6.0 |
| Urate can form crystals (saturation point) | about 0.40 | about 405 | 6.8 |
| Treatment target in gout (most patients) | below 0.36 | below 360 | below 6.0 |
| Lower target for severe gout or tophi | below 0.30 | below 300 | below 5.0 |
A uric acid level above the normal range is called hyperuricemia. It raises the risk of gout and kidney stones, but not everyone with high uric acid develops symptoms. Discuss your result with your doctor, and use the reference range printed on your own lab report.
Uric Acid Units Explained
- µmol/L (micromoles per litre) is the SI unit most laboratories outside the US use for uric acid.
- mmol/L is the same SI measurement divided by 1,000 (0.38 mmol/L = 380 µmol/L). Some labs and apps display it this way.
- mg/dL is the conventional unit used in the United States, the Philippines and many other countries, and in most gout guidelines.
- Urate, serum uric acid and BUA (blood uric acid) all refer to the same test and use the same conversion factor.
When Is Uric Acid Tested?
Doctors check uric acid to investigate joint pain and suspected gout, to monitor urate-lowering treatment such as allopurinol, to assess kidney stones, and as part of routine kidney and metabolic screening. See all kidney function unit conversions for creatinine, urea and BUN.
Frequently Asked Questions
What is the conversion factor for uric acid?
Multiply mmol/L by 16.81 to get mg/dL, or divide µmol/L by 59.48 to get mg/dL. In the other direction, mg/dL × 0.0595 = mmol/L and mg/dL × 59.48 = µmol/L.
How do I convert uric acid µmol/L to mg/dL?
Divide the µmol/L value by 59.48. For example, 380 µmol/L ÷ 59.48 = 6.39 mg/dL.
What is 0.48 mmol/L uric acid in mg/dL?
0.48 mmol/L × 16.81 = 8.07 mg/dL (480 µmol/L). This is above the usual normal range for both men and women.
What is 6 mg/dL uric acid in mmol/L?
6 mg/dL ÷ 16.81 = 0.357 mmol/L, or about 357 µmol/L. Below 6 mg/dL (0.36 mmol/L) is the usual treatment target for people with gout.
What is a normal uric acid level in mmol/L?
Typical normal ranges are 0.20–0.42 mmol/L for men and 0.14–0.36 mmol/L for women (3.4–7.0 mg/dL and 2.4–6.0 mg/dL). Ranges vary between laboratories.
What uric acid level is too high?
Above about 0.40 mmol/L (6.8 mg/dL), uric acid can start to form crystals in the joints. Levels above your lab’s upper limit are called hyperuricemia. There is no single “dangerous” number, so discuss any high result with your doctor.
Is urate the same as uric acid?
Yes. Urate is the form uric acid takes in the blood, and serum urate, serum uric acid and BUA (blood uric acid) results all convert with the same factor of 16.81.