Advanced Route Planner for Car Travelers

Unlock new adventures with our free route planner: perfect your road trips, discover new routes, and leverage expert travel insights for an unforgettable journey.

This distance calculator, covering the United States, North America, and worldwide, simplifies your travel planning. Enter your start and end points in the "From" and "To" fields — accepting city names, addresses, or GPS coordinates — and click "Calculate" to get started.

Customize your journey with "Fuel consumption" and "Fuel price" for cost estimates, and use the crosshair icon for map selections. Dive into "Advanced options" to add stops or adjust speeds, tailoring the trip to your pace and ensuring accurate travel time predictions.

Routes Between Cities in the US

What Can You Do With This Route Planner

Check
route for optimality
Save
fuel and travel costs
Calculate
route metrics
Plan
departure and arrival times

How Is the Distance Between Cities and Points Calculated?

Distance and Travel Time Calculation Algorithm

This route calculation tool harnesses the power of shortest path search algorithms within a weighted road graph, employing sophisticated algorithms like Dijkstra, A-Star, and Contraction Hierarchies. Unlike conventional calculators that use distance or travel time as the graph weight, our system optimizes drive time for vehicles, favoring routes on higher-class roads for a smoother journey.

The backbone of this tool is built on OpenStreetMap data, ensuring our road graphs are accurate and up-to-date. We calculate distances between road segments with the haversine formula, using precise GPS coordinates to measure the Great Circle Distance. This formula is pivotal for calculating "air distance" or "straight line distance" between two points, taking into account the curvature of the Earth.

Road distances, however, diverge from straight line distances due to the natural curvature and layout of roads. To address this, roads are represented as segmented lines, and the haversine formula is applied to each segment, allowing for precise calculation of the journey length between any two points.

Recognizing that cities encompass large areas, our tool selects a central point within each city for distance calculations between cities. For personalized route planning, users can specify exact addresses or select points on the map. Additionally, the route's start and end points can be adjusted directly on the map for enhanced customization.

Travel time calculations break down the route into segments, evaluating the maximum permitted speed for each segment to estimate the fastest possible travel time.

It’s important to note that while our route calculation relies on advanced computer modeling for accuracy, no model is perfect. We encourage users to plan with a margin for adjustment to ensure a reliable and efficient journey.

Other Methods of Calculating Distances

One simple way to measure distance is by using a highway atlas. By tracing a route with your eye and rolling a curvimeter along it, you can gauge the distance. Estimating travel time involves assuming an average speed of 50 miles/hour on major intercity roads. Although this method provides rough estimates, it's straightforward.

In the absence of a curvimeter, a ruler can serve as a substitute. Start by aligning the ruler's zero mark with your route's beginning and follow the road's bends closely. Then, translate the measured length into kilometers or miles using the map's scale, which is typically provided in the atlas.

For distances between cities, reference tables in atlases and guidebooks offer a handy solution, especially for routes linking major cities. Note, however, that these tables may not cover smaller towns.

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