-8.5 degrees Celsius = 16.7°F (exact). Rounded: 16.7°F. In Kelvin: 264.65 K. In Rankine: 476.37°R.
Below freezing (0°C = 32°F). Water is solid ice at this temperature.
Below freezing: -8.5°C = 16.7°F. Key landmarks: 0°C = 32°F (freezing), −10°C = 14°F (cold winter), −20°C = −4°F (severe cold), −40°C = −40°F (where scales meet).
All temperature units: 16.7°F · 264.65 K (Kelvin) · 476.37°R (Rankine). Kelvin starts at absolute zero (−273.15°C). Rankine is used in some US engineering applications.
Formula: °F = (°C × 9/5) + 32. For -8.5°C: (-8.5 × 1.8) + 32 = -15.3 + 32 = 16.7°F. Reverse: °C = (°F − 32) × 5/9 = (16.7 − 32) × 0.5556 = -8.5°C.
-8.5°C = 16.7°F (exact: 16.7°F). Formula: (-8.5 × 9/5) + 32 = 16.7°F.
Multiply by 1.8 then add 32: -8.5 × 1.8 = -15.3, + 32 = 16.7°F. Quick estimate: double the Celsius value and add 30 → 13°F (approximate).
Add 273.15: -8.5 + 273.15 = 264.65 K. Kelvin is used in science — 0 K is absolute zero (the coldest possible temperature).
Below freezing (0°C = 32°F). Water is solid ice at this temperature. In Fahrenheit: 16.7°F is below freezing.