What a 150 air-mile radius is
For the trucking rule discussed here, one air mile equals one nautical mile (1.852 km). A 150-air-mile radius is 150 nautical miles or approximately 172.62 statute miles measured geographically from the applicable work-reporting location.
Do not market the generated circle as certified evidence of ELD exemption or conclusive proof that a driver meets all short-haul requirements.
Locate the normal work-reporting location using an address, explicit coordinate or map point. Home address is not automatically the required origin.
The default is 150 air / nautical miles. Changing to ordinary statute miles without converting would display the wrong regulatory radius.
Visually compare proposed stops with the boundary. Use point-to-point measurement to check specific distances; review all remaining FMCSA conditions separately.
In US federal motor-carrier distance definitions, an air mile is a nautical mile. One nautical mile is exactly 1.852 km and approximately 1.150779 statute miles.
One hundred fifty air miles is therefore 277.8 kilometers, or approximately 172.62 regular miles. A truck can travel farther along roads while remaining inside this straight-line circle.
Who uses it
Dispatchers, qualifying short-haul drivers and fleet administrators may use the circle to screen whether work remains within the radius part of an applicable rule. Checking a stop on this map does not itself prove eligibility for an exemption.
A qualifying employer generally must retain the prescribed start/end duty records and related information for six months under the relevant regulation. Some driver categories have different requirements.
The map does not create or validate legally sufficient driver time records. Confirm recordkeeping duties with the current FMCSA text.
The FMCSA 150 air-mile short-haul exception
49 CFR 395.1(e) contains short-haul rules for qualifying drivers. Relevant property-carrying drivers may qualify under provisions involving a 150-air-mile radius, a return to the normal reporting location, a 14-hour duty window and employer-kept time records.
Qualification is not determined by the circle alone; driver category, other limits, records and applicable regulations all matter. Consult the current regulation and FMCSA guidance.
The short-haul exception under 49 CFR §395.1(e) includes conditions beyond geography. Relevant covered drivers must stay within the specified 150-air-mile radius, return to the normal reporting location and be released within the applicable 14-hour window, with required employer time records. Separate provisions may apply to different driver categories and operations. Hours-of-service driving limitations remain material; drawing a circle never establishes all the facts necessary for eligibility.
An employer evaluating an exception should consult the current FMCSA rules, recordkeeping requirements and advice appropriate to the driver and operation. This website supplies a distance calculator and general explanation only. It does not issue compliance certificates, track legally required duty records or determine whether an ELD is required for a particular vehicle or driver.
Air miles are straight-line, not road miles
Air miles are measured along the Earth’s surface between geographic coordinates. Road distances depend on the network, ramps, one-way streets, access restrictions and detours.
A destination 140 air miles away could involve substantially more than 140 statute miles of driving. Likewise, a road trip route may leave the circle even when its destination is inside.
The first is measuring 150 road miles instead of 150 air miles; the two can differ by much more than the statute-to-nautical conversion because roads rarely follow the shortest path. The second is centering a circle on the driver's house or a depot selected for convenience rather than the normal reporting location defined by the actual operation. The third is interpreting every point inside the circle as automatically eligible for the short-haul exception.
For comparison, the Distance Calculator measures direct distance between selected locations and the Drive Time Map explores possible road travel-time catchments when configured. Neither is a substitute for reading the governing exception, and a drive-time zone should never be displayed as an air-mile regulatory circle.
See the radius from your location
Set the map center to the normal work-reporting location specified by the relevant rule, or manually enter its coordinates. The displayed 150-nautical-mile circle is a straight-line distance screen, not a road-mile or regulatory eligibility certificate.
How to Check Stops Against the 150 Air-Mile Boundary
Set the center to the driver's normal work-reporting location, not necessarily home or the location of the first customer. Draw the 150-air-mile circle and select the stop-testing control. Tap a destination on the map to compare its straight-line geodesic distance to the center, expressed in nautical miles. A result at or under 150 air miles is geometrically inside; a larger value is outside. You can test several destinations without moving the reporting base.
Record the center address and individual stop coordinates if the map is part of an operational review. A result for one destination does not analyze a complete shift, all activities, pickup windows or compliance with any hours-of-service provision. When a stop sits close to the boundary, geocoding precision matters; confirm the actual physical address rather than an approximate ZIP center.
Imagine a dispatcher has one normal reporting base and several scheduled customer stops. The map can test each stop’s center-to-base air-mile distance, marking geometrically inside or outside the 150-nautical-mile circle. A stop 149.9 air miles from the precise base is inside mathematically, but address coordinates and geocoding error should be reviewed carefully. A stop 150.1 air miles away would be outside regardless of whether the road route happens to be short or long.
Neither classification confirms how long a driver was on duty, where the shift started and ended, whether breaks were taken or whether the employer kept appropriate records. The resulting map is one factual input to a larger compliance assessment, not an automatic legal determination. Consult the current federal regulation and applicable operation-specific guidance.
150 Air Miles to Statute Miles and Kilometers
US federal trucking rules use the term air mile to mean a nautical mile. One nautical mile is exactly 1,852 meters, which is approximately 1.15077945 ordinary statute miles. Therefore 150 air miles equal 277.8 kilometers or approximately 172.62 statute miles. This is not the same as a 150-mile drive or a 150-statute-mile circle. When you set the boundary, confirm that the map is using nautical-mile units rather than a generic “miles” selector.
| Air miles | Statute miles | Kilometers |
|---|---|---|
| 1 | 1.15 | 1.852 |
| 50 | 57.54 | 92.6 |
| 100 | 115.08 | 185.2 |
| 150 | 172.62 | 277.8 |
| 200 | 230.16 | 370.4 |
Find the geographic coordinate of the reporting base and compare it to the stop using a geodesic distance calculation. Convert kilometers to nautical miles using 1.852 km per air mile.
Location accuracy matters near the 150-mile limit. A geocoded town center may not represent the actual warehouse gate; use specific verified coordinates.
An air mile is a nautical mile, not a statute mile or frequent-flyer reward point.
| Air miles | Statute miles | Kilometers |
|---|---|---|
| 1 | 1.15 | 1.85 |
| 25 | 28.77 | 46.30 |
| 50 | 57.54 | 92.60 |
| 75 | 86.31 | 138.90 |
| 100 | 115.08 | 185.20 |
| 150 | 172.62 | 277.80 |
| 200 | 230.16 | 370.40 |
A result reporting 149.99 air miles is not necessarily “safe” in any regulatory sense. If the origin marker is based on a rough ZIP center rather than the driver’s real reporting address, or the destination resolves to the middle of a large property instead of its entrance, the geographic calculation may be precise on the wrong coordinates. Verify the address and preserve the numeric result without casually rounding across a threshold.
For a stop far from the boundary, approximate geocoding may still be useful for exploratory route screening. For a marginal stop or disputed case, consult the governing documentation and verified site coordinates. This distinction lets the tool remain useful without pretending its map controls certify recordkeeping, hours of service, driver classification or federal compliance.
Accuracy and Compliance Limitations
Verify the original coordinates, reference year when data is involved, map provider, units and edge cases. Geographic circles do not account for travel barriers. A calculated result is not a land survey, legal certification or live traffic estimate.
The short-haul rule discussed here concerns US federal motor-carrier regulations. Other countries use different transport rules and distance definitions.
This webpage is educational and should not be treated as regulatory, legal or operational advice.
Frequently Asked Questions
How many regular miles is a 150 air-mile radius?
150 air miles means 150 nautical miles, which equals 277.8 kilometers or approximately 172.62 ordinary statute miles. The distance is measured from the selected reporting-location center along Earth's surface, not by following a highway. It is a radius, so the full diameter of that circle spans 300 nautical miles.
What is the 150 air-mile rule?
The FMCSA short-haul exception is a conditional hours-of-service recordkeeping rule for qualifying drivers. The commonly discussed 150-air-mile distance is only one element: return-to-reporting-location, duty-time and time-record obligations also matter under the applicable provision. This map helps check geographic distance; it cannot certify a driver or a particular trip as eligible for the exception.
What does one air mile equal?
One air mile is one nautical mile, exactly 1,852 meters by international definition. It is approximately 1.15078 ordinary miles. When a rule mentions a 150-air-mile radius, a map set to 150 ordinary miles is too small and should not be used for the boundary. Our air-mile mode converts nautical miles before drawing the circle.
Is the radius measured from home?
For the usual short-haul interpretation, the relevant reference point is the driver's normal work-reporting location, not necessarily their residential address. A driver may live far from the terminal while reporting to the same worksite. Center the map on the documented reporting location and verify the specific FMCSA provision that applies to that operation.
Do road detours count toward the radius?
Road detours do not change the straight-line air-mile radius. A delivery stop can be geographically within 150 air miles of the reporting point even when the road route is longer than 172.62 ordinary miles. That geographic check does not remove other driving-time, duty-period or recordkeeping requirements under hours-of-service rules.
Does being inside the circle remove ELD obligations?
Not automatically. All applicable short-haul exception requirements must be satisfied.
Can Google Maps draw a 150 air-mile circle?
Use a dedicated radius tool with nautical units; My Maps can display an imported KML geometry.
Are airline rewards Air Miles the same thing?
No. Frequent-flyer points are unrelated to nautical-mile distance.
Where should I center a 150-air-mile compliance radius?
On the normal work-reporting location relevant to the applicable FMCSA exception, not arbitrarily on your home or an address nearer the destination.
Does being inside the circle automatically remove ELD requirements?
No. Short-haul exceptions depend on other conditions and records. Consult the applicable regulation and your compliance professional.
How far is 150 air miles in regular miles?
One hundred fifty nautical or air miles equal 277.8 kilometers or about 172.62 ordinary statute miles. The value is shortest geographic surface distance and not the road mileage to a destination.
Is the reporting location always the driver’s home?
No. The applicable short-haul rules refer to the normal work-reporting location. The correct base depends on the operation. Centering the radius on an unrelated address can make an otherwise precise circle misleading.
Does being inside the circle guarantee short-haul eligibility?
No. Geographic distance is one condition among others including return/release requirements and appropriate time records. The map tests points against the circle; it cannot determine a driver’s complete regulatory status.
Can the circle cross state borders?
Yes. A geographic distance circle does not stop at administrative boundaries. Crossing states may involve other applicable operating requirements that a basic radius calculator does not evaluate.
Are air miles the same as airline loyalty points?
No. In the short-haul rule an air mile means a nautical mile. Loyalty-program “Air Miles” are points with separate terms and valuations and have nothing to do with geographic radius calculations.
What if a stop appears right on the 150-air-mile edge?
Check the exact destination coordinates and reporting base. Address geocoding can return an approximate point, and tiny coordinate differences near the threshold may affect classification. Review official guidance for consequential compliance decisions.
Primary data references and calculation scope
Source A: 49 CFR §395.1(e) short-haul provisions. Source B: FMCSA hours-of-service summary.
The location reference is the normal work-reporting location for the applicable short-haul rule. A 150 nautical-mile straight-line circle checks distance only; release times, records, vehicle/driver eligibility and all other legal conditions must be evaluated separately.