Square Micrometers to Ares: the quick answer
1 µm² = 1 × 10⁻¹⁴ a
1 square micrometer equals 1 × 10⁻¹⁴ ares
To convert square micrometers to ares, multiply the value by 1 × 10⁻¹⁴. To go the other way, multiply ares by 100,000,000,000,000 to get square micrometers.