Back M 03 German Route M03 (Ukraine) French M 03-as út (Ukrajna) Hungarian Strada M03 Italian Autostrada M03 (Ucraina) LMO Automagistralė M03 (Ukraina) Lithuanian M03 (Oekraïne) Dutch Droga międzynarodowa M03 (Ukraina) Polish Автошлях М 03 Ukrainian
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| Автошлях М03 | ||||
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| Route information | ||||
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| Length | 844.2 km (524.6 mi) 858.9 km (533.7 mi) with access roads | |||
Kyiv - Boryspil (part of  E40) | ||||
| Length | 18 km (11 mi) | |||
| E40 (main) | ||||
| Length | 1 km (0.62 mi) | |||
| West end | (Kyiv) E40 M 06  E101 E95 E373 | |||
| Major intersections | (Poltava)  E584 (Kharkiv)  E105 | |||
| East end | (Debaltseve) E40 M 04 E50 | |||
| E50 (Donbas) | ||||
| Length | 1 km (0.62 mi) | |||
| West end | (Debaltseve) E50 M 04 E40 | |||
| East end | (Dovzhansky) (Sverdlovsk Raion) / E50 M 19 | |||
| Location | ||||
| Country | Ukraine | |||
| Oblasts | Kyiv, Kyiv, Poltava, Kharkiv, Donetsk, Luhansk | |||
| Highway system | ||||
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Highway M03 is a Ukrainian international highway (M-highway) connecting Kyiv with Dovzhansky on the border with Russia, where it continues into Russia as the A270.[1] It is part of European route E40 from Kyiv to Debaltseve at which it is part of European route E50 to the border with Russia.[2] At 844 km (524 mi), the M03 is the longest international state highway in Ukraine.
In Soviet times the M03 was part of the M19. Today, the highway stretches through five oblasts and ends at the border checkpoint at Dovzhansky which is part of Sverdlovsk Raion (Luhansk Oblast). The route connects Kyiv and Kharkiv with the industrial region of Donbas. Part of the M03 between Kyiv and Boryspil was reconstructed into an automagistral to handle higher traffic between Kyiv and the Boryspil International Airport.
From Boryspil to Lubny, the road is a dual carriageway, thereon it continues as a single carriageway with some 2x2 sections.
Significant armed conflict has occurred on or near the eastern portions of the highway during the war in Donbas and the 2022 Russian Invasion of Ukraine.