kg/yr
kilogram per year
The kilogram per year is an annual mass rate, used for emissions inventories, chemical consumption budgets and long-term loading figures. This site uses the Julian year of exactly 365.25 days, or 31,557,600 seconds, so one kilogram per year is about 3.1688e-8 kilograms per second. The ratio is exact given that year length, but the decimal repeats and is rounded here.
Watch out: There is no single definition of a year. The Julian year of 365.25 days used here differs from a common year of 365 days by about 0.07 percent and from the Gregorian mean year of 365.2425 days by about 0.002 percent. For most annual budgets the difference is negligible, but for regulatory reporting the year basis should match whatever the regulation specifies.
| 1 kg/yr | 0.00011407712 kg/h |
Solvers that use mass flow rate