Distance between Calgary and Ottawa (straight line)
The straight-line distance between Calgary and Ottawa, both in Canada, is 1,788 miles (2,877 km), as the crow flies, measured from one city centre to the other. It is the shortest path over the Earth's surface; any road between them is longer.
Straight-line distance
1,788 miles
2,877 km · straight line
Heading from Calgary
87° (east)
initial compass bearing to Ottawa
Flight time estimate, not a booking
~3 h 35 min
at about 800 km/h, in the air only
Straight-line (great-circle) distance, as the crow flies. The road distance is longer.
CalgaryOttawaThe line is the great circle: straight over the globe, curved on a flat map.
Measure your own two places
Pick any two cities, addresses or coordinates in the calculator, or start from where you are standing. It gives the same straight-line distance, in miles and kilometres.
Calgary to Ottawa at a glance
- Straight-line distance
- 1,788 miles (2,877 km), as the crow flies
- Heading from Calgary
- 87° (east) to Ottawa
- Heading from Ottawa
- 297° (west-northwest) to Calgary
- Midpoint
- 49.8474° N, 93.7920° W, halfway along the straight line
- Flight time estimate, not a booking
- About 3 h 35 min in the air at a cruising speed of 800 km/h along the straight line. Take-off, landing, the real flight path and any stops add more.
- Calgary, Canada
- 51.0501° N, 114.0853° W (city centre)
- Ottawa, Canada
- 45.4112° N, 75.6981° W (city centre)
Nearby city pairs
Other distances from Calgary
- Calgary to Edmonton175 miles
- Calgary to Vancouver419 miles
- Calgary to Toronto1,683 miles
- Calgary to Montréal1,876 miles
Other distances from Ottawa
- Ottawa to Montréal102 miles
- Ottawa to Toronto217 miles
- Ottawa to Edmonton1,762 miles
- Ottawa to Vancouver2,200 miles
Questions
Is 1,788 miles (2,877 km) the driving distance from Calgary to Ottawa?
No. 1,788 miles (2,877 km) is the straight-line distance between the two city centres, as the crow flies. A road route is always longer, because roads bend around terrain and water, and MapGO does not measure driving distance or travel time.
How is the distance between Calgary and Ottawa measured?
Along a great circle: the shortest line over the Earth's surface, from Calgary's centre (51.0501° N, 114.0853° W) to Ottawa's (45.4112° N, 75.6981° W). This is what "straight-line distance" and "as the crow flies" mean on a globe. On a flat map the line can look curved.
How accurate is this distance?
Within about 0.5% for the two centre points. The figure treats the Earth as a sphere (the haversine formula), while the real Earth is slightly flattened, which shifts a long straight-line distance by up to about 0.5%. Measuring from another part of either city changes it more, since a large city can be tens of kilometres across.
Computed by MapGO from each city's centre point (GeoNames) with the haversine formula. All distances on this page are straight lines over the Earth's surface, not road distances.