Free Elevation Profile Generator for New Zealand Routes

What Is an Elevation Profile?

An elevation profile is a two-dimensional cross-section of terrain along a specific route. It displays elevation on the vertical axis and distance on the horizontal axis, giving you a side-on view of the ups and downs you will encounter along any path. Think of it as slicing through the landscape along your route and viewing it from the side.

Elevation profiles reveal critical information that flat maps simply cannot show. They make it easy to see the total amount of climbing and descending, identify where the steepest sections are, and understand how the gradient changes throughout a route. A 20-kilometre route that looks straightforward on a flat map could involve 1,500 metres of cumulative elevation gain with multiple steep sections, and only an elevation profile makes that immediately visible.

Beyond showing raw elevation values, profiles also communicate gradient. The steepness of the line on the chart directly corresponds to how steep the terrain is at that point. A near-vertical line indicates an extremely steep climb or descent, while a gently sloping line indicates a gradual grade. This visual representation is far more intuitive than reading numbers on a topographic map.

Why Elevation Profiles Matter

Whether you are planning a casual day walk or preparing for a multi-day backcountry expedition, elevation profiles are indispensable planning tools. Here is why they matter:

• Planning Route Difficulty: Distance alone does not determine how hard a route is. A flat 15km walk and a 15km route with 1,200m of elevation gain are vastly different experiences. Elevation profiles let you see the true difficulty of a route before you set foot on the trail.
• Estimating Time Accurately: Flat terrain and uphill terrain require very different amounts of time. Using an elevation profile alongside planning rules like Naismith's Rule (adding one hour for every 600m of ascent) produces far more realistic time estimates than distance alone.
• Nutrition and Hydration Planning: Steep climbs burn significantly more calories and cause more sweating than flat terrain. Knowing where the big climbs are helps you plan water and food intake to match the demands of each section.
• Safety and Risk Management: Elevation profiles help identify exposed ridgelines, steep descents that could be dangerous in wet conditions, and high-altitude sections where weather can change rapidly. This information is essential for making smart go/no-go decisions.
• Gear Selection: Routes with significant elevation gain above the treeline may require alpine gear, while routes staying at lower elevations have different requirements. The profile tells you what to expect.
• Pacing Strategy: Knowing where the climbs and flat sections are lets you develop a smart pacing strategy, conserving energy for steep sections and making up time on the flats.

How to Create an Elevation Profile

Our elevation profile generator gives you two methods to create a profile. Both produce the same high-quality result using LINZ LiDAR elevation data.

Method 1: Draw Your Route on the Map

1. Open the tool: Visit the elevation profile generator and ensure you are in profile mode.
2. Navigate to your area: Use the map controls to zoom in to the area where your route begins. You can search for a location or manually pan and zoom.
3. Start drawing: Click on the map to place your starting point. Continue clicking to add waypoints along your route. The tool will connect each point and show the route on the map.
4. Refine your route: Add as many waypoints as you need to accurately trace the path you intend to follow. More waypoints along curves and switchbacks will produce a more accurate profile.
5. Generate the profile: Once your route is drawn, the tool automatically generates the elevation profile chart below the map, pulling elevation values from LINZ LiDAR data for every point along the route.

Method 2: Upload a GPX File

1. Prepare your file: Export a GPX file from your GPS device, Strava, Garmin Connect, AllTrails, or any other GPS application.
2. Upload to the tool: Open the elevation profile generator and upload your GPX file. The tool accepts standard GPX format.
3. Automatic processing: The tool reads the track points from your GPX file, overlays the route on the map, and generates an elevation profile using LINZ LiDAR data rather than the potentially inaccurate GPS elevation values in the file.
4. Review and analyze: Your elevation profile appears instantly, showing accurate terrain data along the entire route.

Understanding Your Elevation Profile

Once your elevation profile is generated, here is how to read and interpret the data it presents.

Reading the Chart

The elevation profile chart displays a continuous line that shows how elevation changes along your route. The horizontal axis represents distance from the start, and the vertical axis shows elevation above sea level in metres. As you scan from left to right, you are following the route from start to finish.

Steep upward lines indicate climbs, steep downward lines indicate descents, and relatively flat lines show level sections. The steeper the line, the steeper the actual terrain. Hover over or tap any point on the chart to see the exact elevation and distance at that location.

Total Elevation Gain and Loss

Total elevation gain is the cumulative sum of all uphill sections along the route, while total elevation loss is the cumulative sum of all downhill sections. These numbers are often very different from simply subtracting the start elevation from the end elevation, because most routes go up and down multiple times. Total elevation gain is widely regarded as the single best indicator of route difficulty.

Maximum and Minimum Elevation

The maximum elevation tells you the highest point on the route, which is important for understanding weather exposure, temperature, and potential snow or ice. The minimum elevation shows the lowest point. The difference between the two gives you the total elevation range of the route.

Average Grade

The average grade or gradient expresses the steepness as a percentage. A 10% grade means you gain 10 metres of elevation for every 100 metres of horizontal distance. Grades under 5% are generally considered gentle, 5-10% is moderate, 10-15% is steep, and anything above 15% is very steep. Understanding the grade of specific sections helps you predict how demanding those sections will be.

Elevation Profiles for Different Activities

Different outdoor activities have different relationships with elevation. What counts as a manageable climb for a hiker might be a brutal ascent for a cyclist. Here is how elevation profiles serve each major activity, with links to our dedicated guides.

Hiking and Tramping

Elevation profiles are perhaps most valuable for hikers. They reveal the true character of a trail far better than distance alone. A profile helps you plan your pace, identify rest spots on ridges or saddles, estimate total hiking time using elevation-based formulas, and determine whether a trail matches your fitness level. For multi-day tramps, breaking the profile into daily sections helps balance effort across each day.

Read our complete guide to hiking elevation profiles for detailed tips on trail planning, Great Walks analysis, and estimating tramping times.

Trail Running

Runners use elevation profiles to plan pacing strategies, predict race times on hilly courses, and structure training sessions. Knowing the exact location and gradient of climbs helps runners decide when to walk and when to run during trail races. The total elevation gain also drives calorie estimates and fueling plans.

Explore our running elevation profile guide for advice on race course analysis, training on elevation, and pacing strategies for hilly routes.

Road and Gravel Cycling

For cyclists, elevation profiles are essential for planning rides, estimating effort, and choosing appropriate gearing. Cyclists are particularly sensitive to gradient because even moderate grades dramatically increase power requirements. A profile helps identify categorised climbs, plan nutrition for long ascents, and estimate overall ride difficulty.

Visit our cycling elevation profile guide for climb categorisation, power estimation, and ride planning tips specific to New Zealand roads.

Mountain Biking

Mountain bikers use elevation profiles to understand the balance between climbing and descending on a trail. Profiles help identify whether a trail is predominantly uphill shuttle-worthy riding or a balanced cross-country loop. Gradient information also helps riders assess whether climbs are rideable or will require pushing.

Check out our mountain biking elevation profile guide for trail analysis, descent planning, and ride grading based on elevation data.

Draw vs Upload: Two Ways to Create Profiles

Our elevation profile generator supports two distinct methods for creating profiles, each suited to different situations.

Drawing on the Map

Drawing your route directly on the map is ideal when you are planning a new route that you have not yet traveled, when you want to explore different route options and compare their profiles, or when you do not have a GPX file available. The interactive map lets you click to place waypoints and see the profile update in real time as you build your route. You can easily adjust individual points or add new ones to refine the route.

Uploading a GPX File

Uploading a GPX file is the best choice when you have a GPS track recorded from a previous trip, when you have downloaded a route from a hiking or cycling platform, or when you want the most accurate representation of a specific path. GPX files often contain hundreds or thousands of track points, giving the profile generator extremely detailed position data to work with. The tool replaces any existing elevation data in the file with accurate LINZ LiDAR values.

Need to add accurate elevation data to your GPX files for use in other applications? See our guide on adding elevation data to GPX files.

Sharing and Exporting Profiles

Once you have created an elevation profile, you have several options for sharing and using the results.

• Shareable Links: Generate a unique URL for your route and profile that you can send to friends, group members, or post on social media. Anyone with the link can view the same route and elevation profile.
• Profile Image: Save your elevation profile chart as an image for including in trip planning documents, blog posts, or presentations.
• Route Data: Export the underlying elevation data for further analysis or for importing into other mapping and planning tools.
• Trip Reports: Include your elevation profile in trip reports to help others understand the terrain of a route you have completed.

How Our Tool Compares

There are several elevation profile tools available online, but our generator offers distinct advantages for routes in New Zealand.

• LINZ LiDAR Accuracy: While tools like GPS Visualizer and Google Earth use global datasets like SRTM with 30-metre resolution and limited vertical accuracy, our tool uses LINZ LiDAR data with sub-metre vertical accuracy. The difference is dramatic, especially in steep or forested terrain where global datasets are unreliable.
• No Signup Required: Unlike Strava, Komoot, and many other platforms, our elevation profile generator requires no account creation. Simply open the tool and start creating profiles immediately.
• Completely Free: There are no premium tiers, no feature gating, and no usage limits. The full elevation profile generator is free for everyone.
• New Zealand Specialist: Our tool is purpose-built for New Zealand terrain using official government elevation data. Global tools often have poor data quality for New Zealand, especially in remote or mountainous areas.
• Ground-Level Accuracy: LiDAR technology penetrates through vegetation to measure the actual ground surface. This means you get true trail elevation, not the elevation of the tree canopy above the trail, which is a common problem with satellite-based elevation data.
• Fast and Simple: No complex software to install, no learning curve. Draw or upload and your profile appears in seconds.

Data Quality and Accuracy

The accuracy of an elevation profile is only as good as the elevation data behind it. Our elevation profile generator uses LINZ LiDAR elevation data, which is the gold standard for terrain measurement in New Zealand.

• Vertical Accuracy: Typically ±0.5 to 1 metre, compared to ±10-20 metres for consumer GPS devices and ±5-10 metres for global satellite datasets like SRTM.
• Ground Penetration: LiDAR pulses penetrate through forest canopy to measure the actual ground surface, producing true trail-level elevation data even in dense bush.
• High Resolution: The LiDAR dataset captures fine terrain details such as ridges, gullies, and track cuttings that lower-resolution data misses entirely.
• Official Data Source: The data is collected and maintained by Land Information New Zealand (LINZ), the government agency responsible for official geographic data.
• Coverage: The LINZ LiDAR dataset covers the majority of New Zealand, including most popular outdoor recreation areas. Coverage is continually expanding.

For more information about how elevation data is corrected and improved, see our guide on GPX elevation correction.

Frequently Asked Questions

Is the elevation profile generator really free?

Yes, completely free with no hidden costs. There is no account required, no usage limit, and no premium tier. The tool uses publicly available LINZ LiDAR data, which is licensed under Creative Commons Attribution 4.0, and we pass that free access on to you.

How accurate are the elevation profiles?

Very accurate. Our tool uses LINZ LiDAR data with sub-metre vertical accuracy (typically ±0.5 to 1 metre). This is significantly more accurate than the elevation data from consumer GPS devices (±10-20 metres) or global satellite datasets (±5-10 metres). The result is a profile that closely matches what you will actually experience on the ground.

Can I create an elevation profile without a GPX file?

Absolutely. You can draw your route directly on the map by clicking to place waypoints. This is perfect for planning new routes, exploring what-if scenarios, or when you simply do not have a GPS track available. The drawing tool works on any device with a web browser.

What file formats can I upload?

The tool accepts GPX files, which is the most widely used GPS exchange format. GPX files can be exported from virtually any GPS device, fitness tracker, or mapping application including Strava, Garmin Connect, AllTrails, Komoot, and others.

Does this work for all of New Zealand?

The tool works for the vast majority of New Zealand. LINZ LiDAR coverage includes most populated areas, recreational areas, and national parks. Some very remote or recently surveyed areas may have varying levels of data resolution, but coverage is continually expanding.

How is this different from the elevation shown on Strava or Garmin?

Strava and Garmin typically use either barometric altitude data from your device or correct against global elevation datasets. Our tool uses LINZ LiDAR data, which is collected by aircraft-mounted laser scanners that measure ground elevation directly. This produces more accurate results, especially in areas with dense vegetation, steep terrain, or variable GPS reception.

Related Resources

Explore more of our elevation tools and guides to get the most out of your outdoor planning:

• Hiking Elevation Profiles - Detailed guide for trampers and hikers
• Running Elevation Profiles - Elevation analysis for trail and road runners
• Cycling Elevation Profiles - Route profiles for road and gravel cyclists
• Mountain Biking Elevation Profiles - MTB trail elevation analysis
• Add Elevation to GPX Files - Enrich GPS tracks with accurate LiDAR elevation data
• Contour Lines for New Zealand - Generate topographic contour maps for any area
• GPX Elevation Correction - Fix inaccurate elevation data in existing GPS files