Kms Tools Ratiborus [top] Jun 2026

The developer’s portfolio includes several standalone utilities that were eventually bundled into the comprehensive suite. These individual tools include:

Most tools within the suite offer different activation modes:

Using KMS Tools Ratiborus is in most countries if you do not own a valid license. It violates Microsoft's software license agreement and potentially the Digital Millennium Copyright Act (DMCA) or similar laws.

The suite typically includes several individual tools from Ratiborus:

exploits this model. It creates a simulated (or "emulated") KMS server on the local machine. The software tricks the operating system into believing it is connecting to a legitimate corporate KMS server. The OS then activates itself against this local server, granting the user a fully functional, activated copy of Windows or Office for 180 days. The tools usually include a feature to automatically renew this activation before it expires, effectively creating a "lifetime" activation as long as the software remains installed.

A command-line version for users who prefer a console interface. Risks and Security Warnings

Results

 Existing
 Desired
Tire circumference
?
Rolling circumference
?
Tire height (sidewall)
?
Tire diameter
?
Rim size
?
Rim width
?
Poke (Outer Edge)
?
Inset (Inner Edge)
?
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Comparison & differences

Circumferential difference
Difference in rolling circumference
?
Speedometer display at real 100 mph or km/h
Speedometer at 100 km/h or mph
?
The following differences also arise:
Difference in ground clearance
?
Change to the outer edge of the rim per side
?
Change to the inner edge of the rim per side
?
Placeholder

Graphic display appears after entering values

The strut illustration is for illustrative purposes only
2: Read the result

Note the difference in rolling circumference:

Rolling circumferences are generally approved in the range +1.5% und -2.5% g. Please check with the responsible inspector beforehand.

Speed deviation outside the norm:

In EU countries, the speedometer may display a maximum of +10 % + 4 km/h and no km/h less than the actual speed driven.
See regulation No 39 of the Economic Commission for Europe of the United Nations (UN/ECE): Point 5.4
Share your calculations

The developer’s portfolio includes several standalone utilities that were eventually bundled into the comprehensive suite. These individual tools include:

Most tools within the suite offer different activation modes:

Using KMS Tools Ratiborus is in most countries if you do not own a valid license. It violates Microsoft's software license agreement and potentially the Digital Millennium Copyright Act (DMCA) or similar laws.

The suite typically includes several individual tools from Ratiborus:

exploits this model. It creates a simulated (or "emulated") KMS server on the local machine. The software tricks the operating system into believing it is connecting to a legitimate corporate KMS server. The OS then activates itself against this local server, granting the user a fully functional, activated copy of Windows or Office for 180 days. The tools usually include a feature to automatically renew this activation before it expires, effectively creating a "lifetime" activation as long as the software remains installed.

A command-line version for users who prefer a console interface. Risks and Security Warnings

Feedback
Tire diameter
Tire diameter:
Diameter of the tire.
Rolling circumference
Calculation incl. load from the vehicle and at a speed of approx. 60 km/h (40 mph) (tire circumference * 0.97).
Tire circumference
Purely calculated circumference of the tire without mounting on a rim and without load.
Tire height
Height of the sidewall of the tire.
Rim size
Rim size:
Diameter of the rim.
Rim width
Rim width:
Width of the rim.
Poke (Outer Edge)
Distance between the OUTER rim edge and the contact surface of the brake disk or brake drum.
Inset (Inner Edge)
Distance between the INNER rim edge and the contact surface of the brake disk or brake drum.
Change in ground clearance
Value by which the vehicle is higher or lower with the new tires.
Changing the rolling circumference. If the deviation is too high, it may be necessary to adjust the speedometer.
Displayed speedometer value with desired tires, which corresponds to the displayed 100 mph or km/h with existing tires.
Change outer edge per side
Distance between the outer surfaces of the rims. The rims in the wheel housing move inwards or outwards by this value.
Change inside edge per side
Distance between the inner surfaces of the rims. The ET (offset) has an influence on this value.
Tire info
Tire info
Tire info
Tire info
Tire info
Rim info
Tire info
Tire info
Tire info
Tire info
Tire info
Rim info