Practical calculators for low-carbon engineering.

Convert between joules, kWh, MWh, BTU, therms, and tonnes of oil equivalent.

Convert hydrogen quantities between mass, volume, and energy units.

Estimate CO₂ emissions from any fuel, electricity grid, or industrial process. Based on IPCC, IEA, Ember, and DEFRA factors.

Estimate hydrogen production from electricity, size an electrolyser for a target H₂ output, check RFNBO compliance, and compute LCOH. For engineers and project developers.

Estimate the levelised cost of e-methanol, e-SAF, e-ammonia and synthetic fuels, with feedstock breakdown, green premium, and CO₂ abatement cost. For engineers and Power-to-X developers.