Multiple Radius Map
Compare coverage rings side by side for planning and analysis.
By Aryan Khan, Founder & Editor · Updated October 2026
For example, rings of 5, 10 and 25 miles around one centre enclose 78.5, 314.2 and 1,963.5 square miles — the outer ring holds twenty-five times the inner one's ground.
How to use Multiple Radius Map
One centre, several honest circles:
The Multiple Radius Map draws several concentric radius circles around a single centre point, so distances compare in bands — who falls within 5 miles, what 10 adds, how far 25 reaches. Set the centre, add your radii and read the map — delivery zones and catchments in one picture.
- 1Set centres and radii.
- 2Compare rings on the map.
What people use Multiple Radius Map for
1. Delivery and service zoning
Free delivery inside 5 miles, a fee inside 10, none beyond 25 — the tier map customers and drivers both understand. Ring areas price the zones; gaps between two centres' circles are the Service Coverage Gap's subject.
2. Catchment comparisons
A store's 5/10/25 bands structure the trade-area report: each annulus is a population question the Population Within Radius tool answers per ring.
3. Emergency and response planning
Five minutes is not five miles — but distance bands are the first sketch of coverage before road networks refine them into drive-time shapes.
4. Real-estate search bands
‘Near the office’ at three tolerances: the rings turn a vague preference into commutable geography a listing search can honour.
Worked examples
Doubling the radius quadruples the area: 5 mi → 78.5 sq mi; 10 mi → 314.2. The 10–25 ring alone (1,649.3 sq mi) holds more than five times the entire 10-mile circle — outer rings are vaster than they look, which is the map's standing lesson.
Two 10-mile circles whose centres stand 10 miles apart overlap by 39.1% of each circle — the geometry behind duplicate-coverage audits when two branches' rings are drawn together.
Ring anatomy for 5 / 10 / 25 miles
Computed from π r² — the numbers behind the map's bands.
| Band | Area | Ring adds |
|---|---|---|
| Within 5 mi | 78.5 sq mi (203 km²) | — |
| 5–10 mi ring | 235.6 sq mi | 3× the inner circle |
| Within 10 mi | 314.2 sq mi (814 km²) | — |
| 10–25 mi ring | 1,649.3 sq mi | 5.25× the 10-mi circle |
| Within 25 mi | 1,963.5 sq mi (5,085 km²) | 25× the 5-mi circle |
Circumferences for scale: the 5-mile ring runs 31.4 miles around; the 25-mile ring, 157.1 — a two-hour drive just to trace the boundary.
Multiple radii make geographic thresholds easier to compare
Plotting several circles around the same or different centers helps compare tiers such as 5, 10 and 25 miles, store catchments, exclusion buffers or competing facilities. The visual overlap can reveal areas served by multiple locations and places that fall outside every threshold.
Each circle remains a straight-line geographic radius. Overlap does not imply equal travel time or equal population, and two same-size circles can represent very different real-world access depending on roads, terrain and settlement density.
How to interpret the result
The most common errors come from using a correct result to answer the wrong geographic question. Keep these points in mind for Multiple Radius Map:
- Decide geometric vs temporal reach before drawing anything: a 10 km circle and a 15-minute drive area answer different questions, and in car-dependent geography they barely overlap in shape. Circles for policy radii, isochrones for response promises.
- Verify areas against a known object first — measure a football pitch or a city block you know — and you'll calibrate your eye for what a hectare or acre looks like at your zoom. The map preview is the unit your intuition trusts.
Limits & appropriate use
Circles and polygons are geometric truths with semantic limits. A radius says nothing about rivers, one-way systems or response times; an area says nothing about what is inside it. The most expensive misuse is treating a geometric catchment as a service promise — which is why the isochrone tools exist as the temporal counterpart, and why the pages cross-link the two insistently. A second limit is resolution: drawn vertices capture the boundary you click, so curved shores want more clicks, and the perimeter grows (correctly) as you add them — the coastline paradox, politely present in every honest measurement tool.
Within geometry, the numbers are exact on the sphere: areas by spherical excess, boundaries by destination math, exports with their parameters embedded. The escalation ladder is short: cadastral precision needs licensed surveys; population-inside-shapes needs census blocks; drive-time promises need the routing engine. Used as the fast, auditable, shareable geometric layer that feeds those heavier instruments, this is exactly the right tool — and it says so.
- Cadastral/legal area → licensed survey with local datum practice.
- Population inside shapes → census blocks, not city-point sums.
- Response-time promises → isochrones plus operational buffers.
Data & methodology
Each circle is generated from its centre and radius by sampling 128 spherical destination bearings. The map shows geometric coverage, not road accessibility or service demand.
For source details, licences and model limitations, see Data Sources and Methodology.
Key terms worth knowing
- Spherical excess
- The method for exact polygon areas on a sphere.
- Catchment
- The area or population served from a centre, geometric or temporal.
Editorial guidance: MapBench explains the method and limitations so the tool can be used as a transparent reference, not as a black-box answer. For legal boundaries, safety-critical routing, surveying, engineering, regulated decisions or official statistics, verify the result with the responsible authority or a qualified professional.
Category: Radius & Area. Results are intended for everyday analysis and planning unless a page explicitly states otherwise.
Method, assumptions & limits
- This tool’s method
- Each circle is generated from its centre and radius by sampling 128 spherical destination bearings. The map shows geometric coverage, not road accessibility or service demand.
- Before relying on the answer
- Check the centre, radius or drawn vertices and the selected units. A geometric footprint does not describe which roads or entrances are accessible.
- What the result cannot establish
- A radius is not a travel-time guarantee. For parcel boundaries or legal land area, use an authoritative survey.
Coverage: Worldwide. Search, basemap and external data requests may use third-party services; browser-based does not mean every operation is offline. Read the source and licence notes, calculation methodology and privacy policy. If a result looks inconsistent, report a correction with the inputs and mode used.
Frequently asked questions
Clear answers about the calculation, accuracy and appropriate use.
Export?
Use related export tools for GeoJSON where available.
Is a radius the same as driving distance?
No. A radius is a geometric circle around a centre point. Driving reach depends on the road network and usually has an irregular shape.
Can I use this for service-area planning?
Yes for first-pass planning. Use a drive-time or road-network tool when accessibility matters more than straight-line coverage.
Are map measurements legal survey measurements?
No. MapBench measurements are planning/reference outputs unless a page explicitly states otherwise. Use a licensed surveyor for legal boundaries.
How many rings can I draw?
As many as the comparison needs — three to five bands is the readable range; beyond that the map becomes a target and the story blurs. Choose radii that match decisions (fees, times, policies), not round numbers alone.
Miles or kilometres?
Both — rings accept either unit, and mixed-unit comparisons (a 5-mile and a 10-km ring) draw faithfully side by side.
Is the area inside a ring the service area?
Geographically yes, operationally not quite: roads, rivers and one-way systems make real reach irregular. Rings are the honest first draft; drive-time tools draw the working version.
Centres other than my location?
Any address or coordinate can anchor the rings — a depot, a store, a competitor. The geometry does not care whose centre it is.
Two centres' rings on one map?
Comparing two locations' bands is the classic site-selection sketch — draw each centre in turn, or use the store catchment tools for the formal version.
Printing and sharing?
Ring maps screenshot and share like any map view; where the tool offers export or share links, the radii travel with the centre so the picture is reproducible.
Why do outer rings look thin but hold so much?
Because area grows with radius squared while the ring's width on screen grows linearly — the map's most reliable optical illusion, and the reason this page tabulates areas beside the picture.
Population inside each ring?
That is a data join, not geometry: the Population Within Radius tool counts people per circle, and repeating it per radius builds the band table.
Related tools and resources
One circle: the Map Radius; people per ring: the Population Within Radius; two-centre gaps: the Service Coverage Gap Finder.
More free tools
Sources, methodology & editorial trust
- ✓ Browser-first processing where supported
- ✓ External sources are documented
- ✓ No account required for public tools
- ✓ Review data sources
Calculations are documented with their assumptions, limitations and source context rather than presented as unexplained answers.
Reviewed and maintained by Aryan Khan, Founder & Editor of MapBench.
Part of our radius & service area hub
Multiple Radius Map sits in the radius & service area cluster, alongside 18 other tools that answer neighbouring questions with different methods or datasets.
You may also need
When this answer is only part of the job, these clusters cover the next step.
Read the guide behind this tool
How to Draw a Radius on Google Maps — Google Maps has no radius button. Here are the exact workarounds to draw a radius circle — plus free tools that do it in one click.