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Trucker's Slide Calc has helped balance 1,202,137 loads!

Trucker's Slide Calc

A mobile application to help semi truckers quickly slide their single, tandem, and tridem axles. It also makes it easy to calculate individual axle weights with weighbridge/whole-truck scales. Click one of the following subjects to learn more.

Use the app to quickly see axle/gross weights and which ones, if any, are over regulation.

How to use a platform scale by weighing as you pull onto the scale.

  1. Pull onto the scale far enough that only the steer axle is being weighed.

  2. Enter the scale's weight into the "Steer" box in the app.

  3. Pull onto the scale far enough so the steer and drive axles are being weighed.

  4. Enter the scale's weight into the "Steer + Drive" box in the app.

  5. Pull onto the scale all the way so truck gross is being weighed.

  6. Enter the scale's weight into the "Gross" box in the app.

  7. All three axle weights are now calculated and shown in their boxes.

  8. The weights under/over regulation are also displayed with the image. Any weight over the limit will be red.

Note: The app also allows you to calculate axle-weights when pulling off a scale. To do so, start by measuring and entering your truck's "Gross" weight, then measure and enter the "Drive+Trailer" weight, last weight and enter the "Trailer" weight.

How to use an axle scale.

  1. Weigh the steer axle and enter it into the "Steer" box.

  2. Weight the Drive axle set and enter it into the "Drive" box.

  3. Weight the Trailer axle set and enter it into the "Trailer" box.

  4. Truck gross will now be shown in the "Gross" box.

  5. The weights under/over regulation are also displayed with the image. Any weights over the limit will be red.

  1. Enter your load's weight as explained in "Axle-Weight Calculator" above.

  2. (optional)Starting from the front of the trailer, count the number of holes until the first slide pin. Enter this number in the "Trailer on hole" box.

  3. Check the distance between the trailer holes and enter it into the "Holes every" section. Holes are measured from center to center.

  4. Tell the app which type of weight you entered in step 1(lbs/kgs) in the "Show weight as" dropdown. Changing this box with weights already entered will ask if you need to convert them to the new unit.

  5. Select which type of balance-calculation you want the app to perform.

    Note: The default option balances the drives and trailers as evenly as possible. This is known to give better fuel-efficiency and smoother rides.
    Plus-users can change the option to maximize trailer weight instead. Maximizing trailer weight results in the smallest possible kingpin-to-rear-axle distance (for "bridge-laws"), the smallest possible turning radius, and allows you to add the most amount of tractor-fuel possible on heavy loads.

  6. Click the next arrow. The app will show a suggestion telling you how far, and which direction, to slide.

Convert weight from lbs to kilograms or from kilograms to lbs.

  1. If required, clear all old-load data by pressing the eraser button at the bottom of the screen.

  2. Select what type of weight you are going to enter in the "Show weight as" box (pounds/kilograms).

  3. Enter your truck's weights.

  4. Change the "Show weight as" box from the input weight type to the desired weight type.

  5. A prompt will appear asking what type of weight the already-entered values are in. Select the type of weight you entered.

  6. The app will automatically convert your truck weights to the new unit.

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