Calculators Archive • Page 4 of 6 • Vibromera

Mass & Weight Converter | kg lb oz ton tonne | Free Online

Free online mass and weight converter. Convert between kg, g, mg, tonne, lb, oz, stone, short ton, long ton and grain. All units shown simultaneously.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Maintenance Schedule Calculator | Next Service Date | Free Tool

Calculate next maintenance service date from last service, interval hours and daily run hours.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Machining Time Calculator | t = L / vf | Free Online Tool

Free online machining time calculator. Compute cycle time for milling (t=L/vf) and turning (t=(L+approach)/(f×n)). Enter cut length, feed rate or feed/rev and RPM.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Machine Vibration Isolation Calculator | Free Tool #067

Complete machine vibration isolation design. Calculate stiffness, natural frequency, deflection, transmitted force from mass, speed, unbalance, mounts, transmissibility.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Machine Foundation Mass Calculator | Rule of Thumb

Machine foundation sizing calculator. Rule: foundation mass >= 3× machine mass.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Lubricant Compatibility Checker | Grease & Oil Mixing Guide

Free online lubricant compatibility checker. Check grease thickener compatibility matrix for mixing lithium, polyurea, calcium, aluminum complex, barium, and more. Flushing recommendations.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Lifecycle Cost Calculator (LCC) | Total Cost of Ownership | Free Online Tool

Free online Lifecycle Cost Calculator (LCC). Compute total cost of ownership including acquisition, installation, energy, maintenance, downtime, and disposal with NPV discounting.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Length Unit Converter | mm cm m inch ft yd mile | Free Online

Free online length unit converter. Convert between mm, cm, m, km, inch, foot, yard, mile, mil, μm and nm. All units shown simultaneously with instant calculation.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Wheel Balancing Weights Calculator | Clip-On & Adhesive

Free online calculator for wheel balancing weights. Enter measured unbalance and rim diameter to find the correct clip-on or adhesive balancing weight in standard 5 g increments. Inner and outer plane support.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Keyway Calculator ISO 773 | Free Tool #074

Keyway design per ISO 773. Enter shaft diameter and torque. Lookup standard key width and height, check bearing and shear stress.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Journal Bearing Defect Frequencies | Oil Whirl & Oil Whip

Free online calculator for journal (plain) bearing defect frequencies. Calculate oil whirl frequency range, oil whip frequency, shaft frequency, and sub-synchronous vibration indicators.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

IP Rating Decoder | IEC 60529 | Ingress Protection Explained

Free online IP rating decoder per IEC 60529. Enter any IP code (IP67, IP54, etc.) to see protection levels against solids and liquids, test conditions, and typical applications.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Insulation Thickness Calculator | Pipe & Surface | Free Online Tool

Free insulation thickness calculator for pipes and flat surfaces. Calculate required insulation to achieve target surface temperature or heat loss. Thermal conductivity data included.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Motor Insulation Resistance (Megger) Interpreter | IEEE 43

Free online motor insulation resistance interpreter per IEEE 43. Calculate minimum acceptable resistance, temperature correction, polarization index, and pass/fail assessment.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Influence Coefficient Calculator | Single-Plane Balancing

Free online influence coefficient calculator for single-plane rotor balancing. Enter initial vibration, trial weight response, and get the correction mass and angle using vector math.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Moment of Inertia Unit Converter | kg·m² lb·ft² g·cm²

Free online moment of inertia unit converter. Convert between kg·m², kg·cm², g·cm², lb·ft², lb·in², oz·in², and slug·ft². Instant results.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hydraulic Wrench Torque Calculator | Pressure to Torque | Free Online Tool

Free online calculator to convert hydraulic wrench pressure to torque. Enter pressure (bar), piston area, and arm length to calculate output torque T = P × A × r.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hydraulic Valve CETOP Sizing & Flow Calculator | ISO 4401 | Free Tool

Free CETOP/ISO 4401 hydraulic valve sizing calculator. Calculate flow capacity from Kv, pressure drop, power loss, and get valve size recommendation.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hydraulic Oil Cleanliness Analyzer | ISO 4406 | Free Tool

Free ISO 4406 oil cleanliness analyzer. Calculate ISO code from particle counts, get target cleanliness by component type, filter β-ratio recommendation, and sampling intervals.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hydraulic Cylinder Calculator | ISO 3320 | Force, Speed, Power | Free Tool

Free hydraulic cylinder calculator per ISO 3320. Calculate force F=P×A, speed v=Q/A, and power P=p×Q from bore, rod, pressure and flow rate.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hydraulic Accumulator Calculator | Gas Precharge | Free Tool

Free hydraulic accumulator calculator. Gas precharge sizing using isothermal P1V1=P2V2 and adiabatic P1V1^γ=P2V2^γ.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hertz Contact Stress Calculator | Sphere & Cylinder | Free Online Tool

Free Hertz contact stress calculator for sphere-on-sphere and cylinder-on-cylinder contact. Calculate maximum contact pressure, contact area, and approach distance.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Heat Loss Through Wall Calculator | U-Value | Free Online Tool

Free heat loss calculator for walls. Q = U × A × ΔT. Enter wall layers (conductivity, thickness), area, temperatures. Calculate U-value and heat flow in watts.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Heat Exchanger LMTD Calculator | Parallel & Counter Flow | Free Online Tool

Free LMTD calculator for heat exchangers. Enter hot/cold inlet and outlet temperatures to calculate log mean temperature difference for parallel and counter flow configurations.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Heater Power Calculator | P = m·c·ΔT/t | Free Online Tool

Free heater power calculator. P = m × c × ΔT / t. Calculate heating power for liquids or air. Enter mass, specific heat, temperature rise, time.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Harmonic Frequency Calculator | RPM to Hz | 1×–10× Orders

Free online harmonic frequency calculator. Convert RPM to Hz and display harmonics 1× through 20×. See period, angular velocity, and CPM for each harmonic order.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hardness Converter | HRC ↔ HB ↔ HV ↔ HRB

Free online hardness converter. Convert between Rockwell HRC, Brinell HB, Vickers HV, and Rockwell HRB scales. Based on ASTM E140. Includes approximate tensile strength estimation.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hammer Mill Balance Calculator | Rotor Weight Distribution | Free Online Tool

Free online hammer mill balance calculator. Check if hammer arrangement on rotor is balanced. Enter hammer masses per position and disc to compute unbalance vector and get redistribution recommendations.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Hammer Centrifugal Force Calculator | Crusher & Mill | Free Online Tool

Free online centrifugal force calculator for hammer mills and crushers. Enter hammer mass, radius, and RPM to get centrifugal force in N, kN, lbf with force-to-weight ratio.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

H₂S Sour Service Material Check | ISO 15156 / NACE MR0175

Free online H2S sour service material screening tool per ISO 15156 / NACE MR0175. Check carbon steel, stainless, duplex, nickel alloys against hardness, yield strength, and environmental limits.

By Nikolai Shelkovenko, 4 weeks ago March 4, 2026

Grouting Volume Calculator | Baseplate Grouting | Free Tool

Calculate grout volume for machine baseplates. Volume = L × W × gap + waste %.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Grounding Calculator | Ground Rod Resistance | Free Online Tool

Free online grounding calculator. Calculate ground rod resistance R=ρ/(2πL)×ln(4L/d). Supports single and parallel rod configurations with soil resistivity input.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

GPS Tolerance Calculator | ISO 14405-1 | Free Online Tool

Free online GPS size tolerance calculator per ISO 14405-1. Enter nominal size and fit to see specification operators, default vs special specifications, and tolerance interpretation.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Geometry Calculator | Area & Volume | Cylinder, Sphere, Cone

Calculate area and volume for cylinder, cone, sphere, torus and rectangular prism.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Generator Bearing Temperature Monitor & Limits Calculator | IEEE C50.13 | Free Online Tool

Free online generator bearing temperature monitor and limits calculator per IEEE C50.13. Check alarm and trip limits for journal and rolling element bearings with lubricant type and trend interpretation.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

General Tolerances ISO 2768-2 Calculator | Form & Position | Free Online Tool

Free online calculator for ISO 2768-2 general tolerances on form and position. Look up flatness, perpendicularity, symmetry, and circular runout tolerances by tolerance class H, K, or L.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

General Tolerances Calculator | ISO 2768-1 | Linear & Angular

Free online calculator for general tolerances per ISO 2768-1. Look up linear and angular tolerance values by tolerance class (f, m, c, v) and nominal dimension. Instant results with full reference tables.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Gear Ratio Calculator | Multi-Stage | Free Online Tool

Free online gear ratio calculator. Calculate transmission ratio from speed, teeth count, or diameters. Supports multi-stage gear trains with up to 5 stages. i = Z2/Z1 = n1/n2.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Shaft-Hole Fit Calculator | ISO 286 | Tolerance & Clearance

Free online ISO 286 fit calculator. Calculate tolerance limits, clearance or interference for shaft-hole combinations. Supports H6–H11 holes and common shaft tolerances f6–s6.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

FFT Resolution Calculator | Lines, Bandwidth, Fmax

Free online FFT resolution calculator. Enter number of FFT lines, Fmax or sampling rate to get frequency resolution Δf, time record length, Nyquist frequency, and bearing defect frequency resolvability.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Feed Rate Calculator | vf = fz × z × n | Free Online Tool

Free online feed rate calculator for milling. Compute table feed rate vf from feed per tooth, number of teeth, and spindle RPM. Also calculates feed per revolution.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Fatigue Life Calculator | S-N Curve | Basquin Equation | Free Online Tool

Free online fatigue life calculator using S-N curve and Basquin equation. Enter stress amplitude, endurance limit, UTS, and Basquin constants to calculate cycles to failure.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Fan Shaft Power Calculator | Free Online Tool

Free online fan shaft power calculator. P_shaft=Q×ΔP/(η×1000). Calculate fan brake horsepower.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Fan Selection — Air Change Rate Calculator | Free Online Tool

Free online fan selection — air change rate calculator. Q=V×ACH/60. Calculate fan flow from room volume and air changes per hour.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Fan Blade Centrifugal Force Calculator | ID/FD Fan

Free online calculator for fan blade centrifugal force. Enter blade mass, CG radius, speed, and number of blades to get force per blade, total force, force-to-weight ratio, and tip speed for ID and FD fans.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Eyebolt Load Calculator | ISO 3266 | Reduced Capacity at Angle

Free ISO 3266 eyebolt load calculator. Determine reduced capacity at angular loading. Enter SWL and lift angle to get derated capacity.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Ex Marking Decoder | IEC 60079 | ATEX Explosion Protection

Free Ex marking decoder per IEC 60079 / ATEX. Enter an Ex marking string to parse protection type, gas group, temperature class, EPL, and zone suitability.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Euler Buckling Calculator | Critical Load & Slenderness | Free Online Tool

Free online Euler buckling calculator. Pcr = π²EI/(KL)². Enter elastic modulus, moment of inertia, length, and end conditions. Critical load, stress, slenderness ratio.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Equivalent Spring Stiffness Calculator (Series & Parallel) | Free Online Tool

Calculate equivalent spring stiffness for springs in series or parallel. Enter up to 5 spring rates to get combined stiffness and natural frequency.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Equivalent Duct Diameter Calculator | Free Online Tool

Free online equivalent duct diameter calculator. Round equivalent of rectangular: d_eq=1.3×(a×b)^0.625/(a+b)^0.25.

By Nikolai Shelkovenko, 4 weeks ago February 15, 2026

Calculators

Engineering calculators for vibration analysis and mechanical engineering