Convert Feet per Minute to Meters per Second

The Foot per Minute (symbol: ft/min) is a unit of cutting speed. The dominant US machining unit of cutting speed — universally called 'surface feet per minute' (SFM) or 'sfpm' in US machinist parlance. 1 ft/min = 0.3048 m/min exactly per NIST SP 811. SFM is the input unit on every US-edition machining reference: Machinery's Handbook (Industrial Press, 31st edition 2020 still defaults to SFM), Niagara Cutter milling-tool catalogs, Kennametal Speed-and-Feed calculator app, Iscar's USA distributor cards, OSG cutting-tool data sheets US-customary editions, and the legacy 'Mid-Range SFM' values memorized by US machinists for shop-floor speed-feed calculations. Typical recommended SFM per Machinery's Handbook + Kennametal: mild-steel (1018, 1045) turning with HSS tool 80-110 SFM; carbide insert 400-800 SFM; coated carbide 600-1,200 SFM; aluminum 6061-T6 with HSS 500-700 SFM, with carbide 1,500-3,000 SFM, with PCD up to 10,000 SFM; cast-iron gray 100-300 SFM; stainless 304/316 with carbide 250-400 SFM; tool-steel hardened 50+ HRC 50-150 SFM. RPM derivation: n (RPM) = SFM × 12 / (π × D-in-inches) = SFM × 3.82 / D. Converting SFM to m/min (divide by 3.281) is routine in multinational machine shops with mixed US/metric tooling.

It belongs to the imperial measurement system.

Feet per Minute are commonly used in CNC machining, manufacturing processes, and tool selection.

The Meter per Second (symbol: m/s) is a unit of cutting speed. A cutting-speed unit equal to exactly 60 m/min, used in specialty high-speed-machining contexts and academic research on metal-cutting tribology and chip-formation mechanics. m/s appears in: abrasive grinding-wheel surface-speed specifications per ANSI B7.1 (typical bench grinder 30-35 m/s; CBN/diamond superabrasive grinding 50-80 m/s; high-speed creep-feed grinding 60-120 m/s; some specialized applications up to 200 m/s), laser cutting and laser engraving feed rates (industrial fiber-laser cutters TRUMPF TruLaser, Bystronic Bystar, Amada ENSIS achieve 0.5-50 m/s linear cutting speed depending on material thickness), waterjet cutting traverse rates (Flow Mach 700, OMAX MAXIEM 0.05-1.0 m/s typical), and academic-research papers in CIRP Annals, International Journal of Machine Tools and Manufacture, Journal of Manufacturing Science and Engineering studying chip formation, cutting temperature, and tool wear at very high speeds where dimensional analysis benefits from SI-coherent units. Most production machining defaults to m/min rather than m/s because the numerical values are more intuitive for shop-floor operators. Convert m/s to m/min by multiplying by 60; to ft/min by multiplying by 196.85.

It belongs to the metric measurement system.

Meters per Second are commonly used in CNC machining, manufacturing processes, and tool selection.