Cyfrifiannell Teithio Rheilffyrdd Cyfrifiannell Teithio Rheilffyrdd Mae'r cyfrifiannell hwn yn defnyddio ffactorau km teithwyr sy'n cael eu defnyddio pan fydd teithwyr sengl yn teithio drwy gyfrwng cludiant torfol (megis ar y trên) a'r nod yw cyfrifo allyriadau ar sail un person, nid cyfrif am y cerbyd cyfan. Math- dewis opsiwn -Rheilffyrdd CenedlaetholRheilffordd RyngwladolRheilffordd ysgafn a thramiauRheilffordd Danddaearol LlundainMae angen cae!Mae angen cae!Teithwyr-+Mae angen cae!Mae angen cae!Pellter-+Mae angen cae!Mae angen cae!Unedau- dewis opsiwn -MilltircilometrMae angen cae!Mae angen cae!Allyriadau carbon0.00kgCO2[{"f":"{type}","l":"equal","v":"national","a":"and","fa":"{units}","la":"equal","va":"miles"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"national","a":"and","fa":"{units}","la":"equal","va":"km"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"international","a":"and","fa":"{units}","la":"equal","va":"miles"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"international","a":"and","fa":"{units}","la":"equal","va":"km"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"light","a":"and","fa":"{units}","la":"equal","va":"miles"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"light","a":"and","fa":"{units}","la":"equal","va":"km"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"london_underground","a":"and","fa":"{units}","la":"equal","va":"miles"}]Mae angen cae!Mae angen cae!0.00kgCO2[{"f":"{type}","l":"equal","v":"london_underground","a":"and","fa":"{units}","la":"equal","va":"km"}]Mae angen cae!Mae angen cae![{"f":"{units}","l":"equal","v":"miles","a":"or","fa":"{units}","la":"equal","va":"km"}]Cliciwch + i ychwanegu mwyCyfanswm Credyd Carbon0.00kgCO2eMae angen cae!Mae angen cae!Trefn0.00kgCO2eMae angen cae!Mae angen cae!Isafswm Trefn[{"f":"{total}","l":"less_than","v":"15","fa":"","va":""}]Ychwanegu at Cart