Sindri Scientific Unit Converter

Choose this endpoint when you need precise, scientifically exact conversions specifically for pressure (atm, bar, Pa, psi), energy (kcal, kJ, eV, J), or molarity (mol/L, mmol/L, molar) — not for general-purpose length, mass, volume, or temperature conversions, which are handled by a sibling endpoint.

• Unsupported unit strings for the given category return an error
• Mismatched category and unit (e.g. passing an energy unit under pressure category) causes failure
• Missing required fields (value, from, to, category) result in validation errors
• Non-numeric value input returns a schema validation error