| Subject | English | Spanish |
| econ., agric. | average fixed cost | costos fijos medios |
| econ., agric. | average fixed costs | costos fijos medios |
| market. | cost fixed as a flat rate | gasto fijado a tanto alzado |
| transp. | cost-plus-a-fixed-fee contract | contrato de margen fijo |
| comp., MS, mexic. | fixed cost | costo fijo (A cost that does not vary with changes in product delivery throughput or output) |
| comp., MS | fixed cost | coste fijo (A cost that does not vary with changes in product delivery throughput or output) |
| mater.sc., el. | fixed cost | costes fijos |
| law | fixed cost contract | contrato de costo fijo |
| law | fixed cost contract | contrato de coste fijo |
| econ., account., commer. | fixed costs | coste fijo |
| fin. | fixed costs | costos fijos |
| fin. | fixed costs | gastos fijos |
| gen. | fixed costs | costes fijos |
| construct. | fixed fee form of prime cost contract | contrato de gastos controlados |
| transp. | fixed-step costs | nivel de costes fijos |
| gen. | how much will it cost to fix it? | ¿cuánto me costará arreglarlo? |
| commun. | network fixed costs | costes fijos de red |