Science & Engineering calculators
This hub brings together technical calculators that were previously difficult to discover under a broad math label. Use the results for analysis and planning, then verify safety-, standards-, and code-sensitive work with authoritative requirements.
12
available calculators
Networking
Calculate IPv4 and IPv6 subnet ranges, masks, prefixes, capacities, and child allocations.
Subnet And IP Address Calculator
Calculate IPv4 subnet details including network address, broadcast address, usable host range, subnet mask, wildcard mask, and CIDR notation.
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IPv6 Subnet Calculator
Find an IPv6 network address, understand its /prefix, and see the complete subnet range. Advanced mode adds child-prefix and reverse-DNS planning.
Open calculatorChemistry
Work with solution dilution, density, moles, particle counts, molarity, molecular formulas, and molar mass.
Dilution Calculator
Solve C₁V₁ = C₂V₂, calculate stock and diluent volumes, plan replicates and overage, check transfer rounding, or generate an auditable serial dilution table.
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Density Calculator
Calculate density, mass, or volume with automatic SI and imperial conversion, geometric volume options, material references, significant figures, and uncertainty estimates.
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Moles Calculator
Use two simple inputs to convert grams to moles, or switch to an advanced pathway for particles, solutions, gas states, and reverse calculations.
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Molarity Calculator
Choose one clear solution-chemistry pathway to calculate molarity, mass, volume, or moles with explicit mL-to-L conversion.
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Molecular Weight Calculator
Calculate molecular weight from a chemical formula and see every element's atom count, atomic weight, mass contribution, and percentage of the total.
Open calculatorElectrical and logistics
Convert engineering units, identify resistors, solve circuit relationships, estimate voltage behavior, and review freight density classifications.
Unit Converter
Search categories and units, then convert common everyday, scientific, engineering, and digital measurements with transparent definitions and a complete equivalents table.
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Resistor Calculator
Decode and encode 4-, 5-, and 6-band resistor colors, read SMD markings, combine resistor networks, and size an LED current-limiting resistor.
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Ohm's Law Calculator
Solve voltage, current, resistance, and power from any two known values with SI-prefix conversion, formula steps, resistor rating context, and tolerance sensitivity.
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Voltage Drop Calculator
Estimate voltage drop, voltage drop percentage, and voltage at load from current, wire length, conductor material, phase, and wire size.
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US LTL Freight Class Calculator
Estimate US LTL freight class from actual packaged density and optionally compare actual, dimensional, and chargeable weight.
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