Hand & Arm Vibratoion Online Calculator
At Nehmeh, we are very much aware of the hazards vibration can present, which is why we provide a way to keep track of your exposure to vibration on a daily basis, the below vibration calculator.
Are you wondering how to calculate vibration exposure, for one tool or more?
It’s simple!
1. Input the Vibration Magnitude (specified on the machine/tool) and represented in terms of m/s² (meters per second squared). A vibration meter can be used as needed. If your machine/tool does not have the vibration magnitude click here or reach out to our service center.
2. Then input the duration of exposure in both hours and minutes.
3. After clicking “Calculate”, you can can review results and further use our guides below for best-practice and guidelines.
Remember, you can add various tools and repeat the above as the calculator will keep track of the inputs and give you a total combined exposure reading that is important.
Note: The results of calculations are dependent on the quality and suitability of the data entered by the user.
Disclaimer
The online calculators are to generate queries only, we recommend working with experts to ensure suitability; if you are unsure or would like assistance analysing your current setup or application, feel free to contact us with your questions for professional advice from one from our experts. Nehmeh assumes no responsibility or liability for any errors or omissions using these online calculators. These online tools are guides and do not constitute as professional advice.
Risk Levels, Recommendations, and Controls
Daily Exposure (m/s² A(8)) | Daily Exposure Points | Risk Level | Recommendation | Controls |
---|---|---|---|---|
0 – 2.5 | 0 – 100 | Low | No action needed, continue monitoring | Regular maintenance of tools and equipment |
2.5 – 5.0 | 101 – 400 | Moderate | Implement control measures, monitor regularly |
|
5.0+ | 401+ | High | Immediate action required to reduce exposure, use PPE and reassess work practices |
|
Explanation
Low Risk (0 – 2.5 m/s² A(8) or 0 – 100 points): No immediate action required but continue monitoring the vibration levels to ensure they remain within safe limits.
Moderate Risk (2.5 – 5.0 m/s² A(8) or 101 – 400 points): Employers should introduce technical and organizational measures to reduce exposure. Regular monitoring should be conducted to ensure exposure levels are controlled.
High Risk (Above 5.0 m/s² A(8) or above 400 points): Immediate action is required to reduce exposure. This may involve changes in work practices, using different tools, providing personal protective equipment (PPE), and implementing health surveillance programs to protect workers’ health.
Vibrations of Selected Power Tools
Industry | Tool type | Tool characteristic, inserted tool, size, process | Notes | Range- lower (10%ile) (m/s²) | Range- upper (90%ile) (m/s²) | Recommended initial value (75%ile) |
General | Drills | Standard drill bit | Vibration values can vary across the many sub-categories (eg small to large) and different materials being worked. Larger drills tend to give higher vibration values. Maintaining sharp drill bits is important | 2 | 5 | 5 |
General | Drills | Hole saw | 4 | 12 | 10 | |
General | Drills – Core | 78–107 mm | Can give very high vibrations if operators push too hard. Maintaining sharp drill bits is important | 6 | 8 | 8 |
General | Drills – Impact | 5 and 8 mm masonry bit | Can give very high vibrations if operators push too hard. Maintaining sharp drill bits is important | 7 | 13 | 11 |
General | Grinders – Angle | 100–180 mm | Vibration values will depend on the force being applied and the different materials being worked. Selecting the right grade of abrasive and applying the right forces can help to minimise exposures | 3 | 10 | 7 |
General | Grinders – Angle | 125 and 100 mm Flapper discs | 2 | 5 | 4 | |
General | Grinders – Angle | 220–300 mm | Vibration values can vary across the many sub-categories and different materials being worked. Applying too much force can produce lobing of the discs and significantly increase vibration levels | 4 | 11 | 9 |
General | Grinders – Die | 5 | 10 | 8 | ||
General | Grinders – Straight | Correct selection of the abrasive will ensure that workers do not apply excessive force and keep vibration magnitudes to a minimum | 4 | 9 | 8 | |
General | Nail guns | Measured vibration levels are dependent upon rates of use. It can be difficult to assess exposure times correctly | 3 | 13 | 9 | |
xxx | xxx | xxx | xxx | xxx | xxx | xxx |
General | Needle scalers | Non-vibration reduced | 12 | 26 | 19 | |
General | Needle scalers | Vibration reduced | 3 | 8 | 7 | |
General | Nibblers | 7 | 12 | 12 | ||
General | Reciprocating saws | Operator training and work organization is important. Lower vibrations can be achieved by keeping the tool’s nose against the workpiece | 7 | 27 | 18 | |
General | Sanders – Random- orbital | Vibration magnitudes are very dependent upon applied force. Lower vibration magnitudes can be achieved by applying the correct forces and using the appropriate abrasives | 6 | 14 | 12 | |
General | Sanders – Orbital | Vibration magnitudes are very dependent upon applied force. Lower vibration magnitudes can be achieved by applying the correct forces and using the appropriate abrasives | 4 | 12 | 9 | |
Construction | Breakers | Vibration- reduced models with suspended handles or suspended bodies | Normal use by experienced operators. Lower values can often be achieved by improved operator training | 7 | 18 | 14 |
Construction | Demolition or rotary hammers | Can give very high vibrations if operators push too hard. Maintaining sharp drill bits is important | 10 | 21 | 18 | |
Construction | Plate compactors | Non-vibration reduced | 9 | 22 | 18 | |
Construction | Plate compactors | Vibration reduced | 2 | 7 | 4 | |
Construction | Pneumatic hammers | Can give very high vibrations if operators push too hard. Maintaining sharp drill bits is important | 10 | 29 | 25 | |
Construction | Saws – Cut- off | Masonry cutting | 5 | 14 | 13 | |
Construction | Scabblers | Well-designed vibration-reduced machines can give vibration values of less than 5 m/s² | 4 | 14 | 12 | |
xxx | xxx | xxx | xxx | xxx | xxx | xxx |
Construction | Trench rammers | 13 | 13 | 13 | ||
Construction | Water-jetting guns | 1 | 5 | 4 | ||
Forestry / Horticulture | Brushcutters – Saw blade | 3 | 5 | 5 | ||
Forestry / Horticulture | Chainsaws | Good maintenance is important, eg regular replacement of engine mounts and sharpening saw points | 3 | 7 | 7 | |
Forestry / Horticulture | Hedge trimmers | Higher vibration values are possible; the data here represents operations on hedges with hedge branches well within the capability of the machines. Vibration values may be higher if the hedge trimmer often has to work hard to cut thicker branches | 3 | 14 | 7 | |
Forestry / Horticulture | Mowers – Hand-guided | 3 | 8 | 6 | ||
Forestry / Horticulture | Mowers – Ride-on | 3 | 6 | 5 | ||
Forestry / Horticulture | Strimmers | Brushcutter – Strimmer | 2 | 7 | 7 | |
Engineering | Chipping hammers | Chipping weld | 20 | 32 | 31 | |
Engineering | Impact wrenches | Drive size: 3/8”, 1/2” & 3/4” | Measured vibration levels are dependent upon rates of use. It can be difficult to assess exposure times correctly | 3 | 6 | 5 |
Engineering | Impact wrenches | Drive size: 1” | Measured vibration levels are dependent upon rates of use. It can be difficult to assess exposure times correctly | 7 | 11 | 10 |
Engineering | Pedestal grinders | Correct selection of the abrasive will reduce the likelihood of workers applying excessive force and will keep vibration magnitudes to a minimum | 2 | 11 | 8 | |
Engineering | Polishers – Angle (hand-held) | Mop head or soft-backed pad | Vibration magnitudes are very dependent upon applied force. Low-vibration magnitudes are achieved by applying the correct forces | 1 | 3 | 3 |
xxx | xxx | xxx | xxx | xxx | xxx | xxx |
Stoneworking / mining / quarrying | Chipping hammers | Chipping stone, concrete, rust | Very high-vibration values if the operator holds the chisel (more than 30–40 m/s²). Low-vibration machines are available that give magnitudes less than 10 m/s² | 11 | 22 | 20 |
Stoneworking / mining / quarrying | Rock drills | Vibration values can vary across the sub-categories (eg small and large drill bits and core drills and different materials being worked, such as concrete or stone). Maintaining sharp drill bits and not pushing too hard will achieve lower vibration values | 10 | 28 | 26 | |
Stoneworking / mining / quarrying | Stone hammers | If you are not using a vibration-reducing sleeved chisel then vibration values are likely to be much higher on the chisel hand | 7 | 22 | 18 | |
Woodworking | Jigsaws | 9 | 17 | 11 | ||
Woodworking | Routers | 2 | 3 | 3 | ||
Woodworking | Staplers | 2 | 6 | 4 |
Learn more about our HAVS
Vibration is a major topic that the power tool industry are working hard to provide solutions for.
Vibration in the workplace is a serious risk that any power tool user should take seriously. Without the proper precautions taken, permanent damage can be incurred such as White Finger.
Did you know too much vibration may cause HAVS (that is hand–arm vibration syndrome)? Also known as white finger or dead finger, and is a secondary form of Raynaud’s syndrome, an industrial injury triggered by continuous use of vibrating hand-held machinery.
Know the facts, on the go

Courtesy from our friends in Makita UK, download the handy Vibration Card, print it off and keep it handy for when you’re working. It has all the information you’ll need to keep yourself safe and within the boundaries of vibration exposure.

Makita demolition tools are the best in the world. Working with users to solve the problem of vibration, Makita created AVT (Anti-Vibration Technology), the benchmark in vibration reduction, defining how products have been designed in close relation to users needs at site level.
Tools within the Makita range feature Anti Vibration Technology (AVT), a combination of innovations that operate together to reduce vibration while, in many cases, increasing the effectiveness of the machine.
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