# Mass

Browse 22 online mass tools for working with mass-related formats and operations in your browser. No software installation is needed.

> Canonical page: https://elysiatools.com/en/tags/mass

## Overview

Use this collection of 22 Mass tools to work with mass-related data and operations through a browser-based interface. Processing runs on Elysia Tools servers; text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

## Frequently asked questions

### What can I do with Mass tools?

Mass tools help you process, convert, validate, and manage mass-related data and files through a browser-based interface.

### Do I need to install software to use these tools?

No software installation is needed. You can operate the tools in your browser.

### How is my data handled?

Your requests are submitted through the browser and processed on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

## Tools

- [AHU Coil Capacity Calculator (Cooling / Heating)](https://elysiatools.com/en/tools/ahu-capacity-calculator): Compute the total, sensible, and latent capacity of an air-handling-unit (AHU) coil from the entering/leaving air state and the dry-air mass flow ṁ_da. Total capacity Qt = ṁ_da·(h1 − h2); sensible capacity Qs = ṁ_da·cp_ma·(T1 − T2) with cp_ma ≈ 1.006 + 1.86·W \[kJ/(kg da·K)\]; latent capacity Ql = Qt − Qs; Sensible Heat Ratio SHR = Qs / Qt. Each state is described by dry-bulb T plus one humidity input (relative humidity φ, or humidity ratio W); W is derived from the Magnus saturation fit when RH is supplied, and enthalpy h = 1.006·T + W·(2501 + 1.86·T) \[kJ/kg da\]. Signed result — works for cooling or heating coils.
- [BMI Calculator](https://elysiatools.com/en/tools/bmi-calculator): Calculate Body Mass Index (BMI) and get health category recommendations
- [Concrete Mix Design (ACI 211)](https://elysiatools.com/en/tools/concrete-mix-design): Design a normal-weight concrete mix per ACI 211.1-91 absolute-volume method. Inputs: slump, nominal max aggregate size, air entrainment, water-cement ratio w/c, fineness modulus of sand, and dry-rodded coarse-aggregate density. Outputs the per-cubic-meter masses of cement, water, fine and coarse aggregate plus the mass ratio.
- [Density Calculator (ρ = m/V)](https://elysiatools.com/en/tools/density-calculator): Compute density, mass, or volume from the other two, with specific gravity and a float/sink check
- [Flywheel Energy Storage Calculator](https://elysiatools.com/en/tools/flywheel-energy-storage): Calculate the kinetic energy stored in a flywheel. E = ½·I·ω², ω = 2π·n/60. Enter the moment of inertia directly, or compute it from flywheel mass and radius (I = ½·m·r²). Supports J/kJ/Wh.
- [Force Calculator (F = m·a)](https://elysiatools.com/en/tools/force-calculator): Compute force, mass, or acceleration from Newton's second law, with weight on Earth
- [G to MG](https://elysiatools.com/en/tools/g-to-mg): Convert grams to milligrams with configurable decimal precision
- [Grams to KG](https://elysiatools.com/en/tools/grams-to-kg): Convert grams to kilograms with configurable decimal precision
- [Hydration Sweat Rate Calculator](https://elysiatools.com/en/tools/hydration-sweat-rate-calculator): Calculate sweat rate, net fluid loss, and a recommended hourly drinking range from pre/post body weight, fluid intake, urine volume, and session duration.
- [KG to Grams](https://elysiatools.com/en/tools/kg-to-grams): Convert kilograms to grams with configurable decimal precision
- [KG to Metric Ton](https://elysiatools.com/en/tools/kg-to-metric-ton): Convert kilograms to metric tons with configurable decimal precision
- [Kinetic Energy Calculator (KE = ½mv²)](https://elysiatools.com/en/tools/kinetic-energy-calculator): Compute kinetic energy, mass, or velocity from the other two, with momentum and km/h conversion
- [Lean Body Mass Calculator (Boer / Hume / James)](https://elysiatools.com/en/tools/lean-body-mass-calculator): Estimate your lean body mass (LBM) from sex, age, weight and height using three clinical formulas side by side, with derived body-fat percentage.
- [MCG to MG](https://elysiatools.com/en/tools/mcg-to-mg): Convert micrograms to milligrams with configurable decimal precision
- [Metric Ton to KG](https://elysiatools.com/en/tools/metric-ton-to-kg): Convert metric tons to kilograms with configurable decimal precision
- [MG to G](https://elysiatools.com/en/tools/mg-to-g): Convert milligrams to grams with configurable decimal precision
- [MG to MCG](https://elysiatools.com/en/tools/mg-to-mcg): Convert milligrams to micrograms with configurable decimal precision
- [Molar Mass Lookup](https://elysiatools.com/en/tools/molar-mass-lookup): Look up the molar mass (atomic weight) of several elements at once by symbol, atomic number, or name, as a sortable comparison table.
- [Molecular Weight Calculator](https://elysiatools.com/en/tools/molecular-weight-calculator): Calculate molar mass, elemental composition, and mass percentages from a chemical formula
- [Momentum Calculator (p = mv)](https://elysiatools.com/en/tools/momentum-calculator): Compute linear momentum, mass, or velocity from the other two, with kinetic energy and km/h conversion
- [Orifice Flow Calculator (Bernoulli, Q=Cd·A·√(2ΔP/ρ))](https://elysiatools.com/en/tools/orifice-flow-calculator): Compute the flow rate through a thin-plate orifice for an incompressible fluid (ISO 5167 Bernoulli form with discharge coefficient C_d). Orifice area A=π·d²/4; volumetric flow Q=C_d·A·√(2·ΔP/ρ); mass flow ṁ=C_d·A·√(2·ρ·ΔP); throat velocity v_orifice=C_d·√(2·ΔP/ρ). If the upstream pipe diameter D is supplied the diameter ratio β=d/D is also returned. ΔP≥0, ρ>0, C_d in 0..1 (default 0.61 for a sharp-edged plate). Diameter in m/cm/mm, pressure in Pa/kPa/bar/atm/psi, density in kg/m³/g/cm³; volumetric flow reported in m³/s, L/s, L/min and m³/h.
- [Potential Energy Calculator (PE = mgh)](https://elysiatools.com/en/tools/potential-energy-calculator): Compute gravitational potential energy, mass, or height from the other two, with impact velocity

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