Enter two or three input values in the appropriate left input fields click calculate and see the converted value on the right. The cars tire has a diameter of 1125 feet.

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### Surface feet per minute.

**Sfpm to rpm formula**. The web machinist software program has machining formulas and calculators in it. Sfm is a combination of diameter and the velocity rpm of the material measured in feet per minute as the spindle of a milling machine or lathe. Turning formula calculator for sfm rpm inches per rev inches per minute and metal removal rates turning formula interactive calculator solve for any subject variable in bold by entering values in the boxes on the left side of the equation and clicking the calculate button.

Smpm to sfm smpm x 32808399. 1 sfm equals 000508 ms meter per second the si unit of speed. The calculators can quickly and easily make calculations based on the formulas provided.

Convert the cars speed from miles per hour to feet per minute. Milling formula interactive calculator solve for any subject variable in bold by entering values in the boxes on the left side of the equation and clicking the calculate button. In order to convert rpm to fpm you would use the following formula rpm fpm pi x diameter where p1 227 or 314 and diameter is expressed in ft.

This speedsfeeds conversions calculator converts different expressions of speeds and feeds to other units of measure. To calculate thedrill revolutions per minute rpm from the surface speeds the following formulae should be used. N s pd 5280 ftmin 314 1125 ft 1495 rpm.

Revolutions per minute rpm 382 x sfm diameter tool or stock sfm to smpm sfm x 3048. If s n pd divide both sides of the equation by pd. You can go to following link for the chart showing conversions of rpm to fpm rpm to fpm conversion chart.

Sfm surface feet per minute rpm revolutions. The faster the spindle turns andor the larger the diameter the higher the sfm. Surface feet per minute sfm to revolutions per minute rpm conversion chart.

The speeds shown are given in surface feet per minute sfm or surface meters per minute mmin measured at the periphery of thedrill. 60 mph 1 mile per minute which in turn is 5280 ftmin.

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