{"id":12,"date":"2010-09-20T14:28:33","date_gmt":"2010-09-20T13:28:33","guid":{"rendered":"http:\/\/www.electromotive.eu\/?page_id=12"},"modified":"2026-03-17T19:27:48","modified_gmt":"2026-03-17T18:27:48","slug":"vehicle-physics-online-calculator","status":"publish","type":"page","link":"https:\/\/www.electromotive.eu\/?page_id=12","title":{"rendered":"Vehicle Physics Online Calculator"},"content":{"rendered":"

This vehicle online calculator is designated for rough calculation of a vehicle’s power consumption driving at constant speed. Air temperature of 25 Degree Celsius and driving at sea level have been taken into account within standard conditions of air-drag and driving resistance.<\/p>\n

Very important<\/strong>: Please use the dot as decimal separator: Correct: 3.141<\/strong>. Wrong: 3,141<\/strong><\/p>\n

Also important<\/strong>: There is no concept of „negative air drag“ in physics. Apart from road gradient<\/strong> (which can be positive or negative) only insert positive values<\/strong> in the calculator fields.<\/p>\n

All information and calculations are provided without warranty or liability.<\/strong><\/p>\n

Last updated on 2025-09-15.<\/p>\n

\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n
overall vehicle weight [kg]<\/td>\n<\/td>\n<\/td>\nrolling resistance coefficient [-]<\/td>\n<\/td>\n<\/tr>\n
effective projected frontal area cw*A [m\u00b2]<\/td>\n<\/td>\n<\/td>\nroad gradient [%]<\/td>\n<\/td>\n<\/tr>\n
headwind speed [km\/h]<\/td>\n<\/td>\n<\/td>\npowertrain efficiency [%]<\/td>\n<\/td>\n<\/tr>\n
vehicle speed [km\/h]<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\npropulsion power required [W]<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Use this form for calculating your effective projected frontal area cW*A:<\/b><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n
cW-value [-]<\/td>\n<\/td>\n<\/td>\nprojected frontal area [m\u00b2]<\/td>\n<\/td>\n<\/td>\nresult: [m\u00b2]<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/form>\n

This table helps with some typical parameters:<\/b><\/p>\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
some cW-values…<\/b><\/td>\ntypical projected
\nfrontal areas<\/b><\/td>\n		rolling resistance coefficient:
\nCar air tires running on…<\/b><\/td>\n<\/tr>\n
city bike & rider<\/td>\n1.2<\/td>\n0.6 m\u00b2<\/td>\ncobblestone<\/td>\n0.013<\/td>\n<\/tr>\n
racing bike & rider<\/td>\n0.85<\/td>\n0.42 m\u00b2<\/td>\nasphalt<\/td>\n0.011<\/td>\n<\/tr>\n
motorbike<\/td>\n0.7<\/td>\n0.8 m\u00b2<\/td>\ndirt road<\/td>\n0.02<\/td>\n<\/tr>\n
car<\/td>\n0.25-0.5<\/td>\n1.5-2 m\u00b2<\/td>\nfarm land<\/td>\n0.1-0.35<\/td>\n<\/tr>\n
truck<\/td>\n0.8<\/td>\n6.5-10 m\u00b2<\/td>\nsteel wheel on railroad<\/td>\n0.0015<\/td>\n<\/tr>\n
<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

This vehicle online calculator is designated for rough calculation of a vehicle’s power consumption driving at constant speed. Air temperature of 25 Degree Celsius and driving at sea level have been taken into account within standard conditions of air-drag and driving resistance. Very important: Please use the dot as decimal separator: Correct: 3.141. Wrong: 3,141 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":6,"menu_order":98,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-12","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/pages\/12","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12"}],"version-history":[{"count":19,"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/pages\/12\/revisions"}],"predecessor-version":[{"id":383,"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/pages\/12\/revisions\/383"}],"up":[{"embeddable":true,"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=\/wp\/v2\/pages\/6"}],"wp:attachment":[{"href":"https:\/\/www.electromotive.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}