// FILE: ./internal/normalizers/common/units.go
package common

// Common unit conversions used across providers.
//
// These helpers are intentionally small and “obvious” and are meant to remove
// duplication across normalizers (and eventually across sources, once refactored).

func TempCFromF(f float64) float64 { return (f - 32.0) * 5.0 / 9.0 }
func TempCFromK(k float64) float64 { return k - 273.15 }

func SpeedKmhFromMps(ms float64) float64  { return ms * 3.6 }
func SpeedKmhFromMph(mph float64) float64 { return mph * 1.609344 }

func PressurePaFromHPa(hpa float64) float64 { return hpa * 100.0 }