15 °C → Observed Temperature Fuel Type Diesel (HSD) — 820–860 kg/m³ Petrol (MS) — 710–780 kg/m³ Kerosene — 780–820 kg/m³ Density @ 15 °C (kg/m³) Observed Temperature (°C) Observed Volume (Litres) – Optional Calculate Observed Temperature → 15 °C Fuel Type Diesel (HSD) — 820–860 kg/m³ Petrol (MS) — 710–780 kg/m³ Kerosene — 780–820 kg/m³ Observed Density (kg/m³) Observed Temperature (°C) Observed Volume (Litres) – Optional Calculate Formula-based calculator derived from API MPMS Chapter 11.1. For custody transfer and billing, official API/ASTM tables must be used.