Liquid H2 (LH2) is a strong candidate for large scale, cost effective zero-emission transportation. One drawback of using LH2 are the losses along the supply chain, when transferring or using the molecule. This simulation code written in MATLAB enables to quantify the transfer and boil-off losses when using LH2, typically between a LH2 trailer and a stationary storage (e.g. at the refueling station). Different boundary conditions can be simulated for further optimization.