Materials & Measurement Tools | The Free Tools Directory

Bearing Calculator6 options

The Bearing & Destination Point Calculator finds initial bearing between two coordinates and can also compute destination points from bearing and distance. It runs client-side in the browser and is presented as free with no account requirement. It is suitable for navigation and mapping workflows.

6 options📐 Materials & Measurement

Screenshot of Atto to Zepto Metric Converter

Atto to Zepto Metric Converter6 options

SI Prefixes Converter converts between metric prefixes and lists supported prefixes such as atto and zepto with their powers of ten. It provides instant conversion between selected prefixes. ([rapidtoolsonline.com](https://www.rapidtoolsonline.com/unit-converters/prefixes-converter))

6 options📐 Materials & Measurement

Beam Span Calculator4 options

Its Free Beam Calculator allows span-based beam analysis by entering geometry, supports, and loads, then generating moment, shear, and deflection outputs. The page is publicly available as a free tool and can be used without mandatory payment. Optional signup unlocks additional advanced platform features, but the core calculator is free.

4 options📐 Materials & Measurement

Screenshot of Baume to Specific Gravity Density Converter

Baume to Specific Gravity Density Converter5 options

This free API gravity calculator includes an API ↔ Baumé mode alongside specific gravity functionality, enabling Baumé-related SG conversion workflows. It is browser-based and available without a mandatory paid plan. The page also provides supporting formulas and usage context.

5 options📐 Materials & Measurement

ppm to ppb converter2 options

Converts parts per million (ppm) to parts per billion (ppb) using simple arithmetic. Users input a ppm value, and the tool performs the conversion by multiplying by a factor of 1,000. Ideal for scientific and environmental applications where precise concentration measurements are required. Scientists, researchers, and environmentalists frequently use this converter for tasks such as calculating air or water pollution levels, analyzing chemical concentrations in biological samples, and ensuring compliance with regulatory standards.

2 options🔢 Number Conversion

Gas Density Calculator2 options

Calculates gas density by inputting mass and volume, providing quick determination of the gas type based on these measurements. Ideal for students, scientists, and engineers needing to identify gases in various applications such as weather analysis, chemistry experiments, or industrial processes.

2 options⚛️ PhysicsOther calculators

Screenshot of Engineering Notation Calculator

Engineering Notation Calculator2 options

Calculates mathematical operations using engineering notation, simplifying conversions between units of measurement for students and professionals. Converts large or small numbers into more manageable forms, facilitating calculations in various scientific and engineering applications. Engineers, scientists, and students find this tool invaluable for handling complex calculations that involve extremely large or small quantities, ensuring accuracy and efficiency in their work.

2 options🔢 Number Theory & SequencesOther calculators

Midpoint Calculator2 options

Calculates the midpoint between two Cartesian coordinates using the midpoint formula. Input the x and y values for two points, and it instantly computes the average of each coordinate to find the center point between them. Ideal for students, teachers, and anyone working with geometric shapes and spatial relationships. Helps users quickly determine the midpoint without manual calculations, saving time on homework assignments or during quick problem-solving sessions in geometry classes and related fields.

2 options📐 Geometry & ShapesCoordinate geometry calculators

Screenshot of Density Altitude Calculator

Density Altitude Calculator2 options

The density altitude calculator tells you your effective altitude in terms of the International Standard Atmosphere, which is necessary for determining airplane engine performance and lift.

2 options⚛️ PhysicsAtmospheric physics calculators

ppm to percent converter2 options

Converts parts per million (ppm) to percentage, offering a straightforward way to translate concentration measurements. Users input ppm values, and the tool performs the calculation to output the equivalent percentage. Scientists, engineers, and researchers in fields such as chemistry, environmental science, and engineering would use this tool to easily convert concentration data for analysis or reporting.

2 options🔢 Number Conversion

Molarity Calculator Nc Calculator

Calculates molarity, NC concentration directly from given values. Enter known quantities like moles and volume to compute molarity instantly. Useful for students, researchers in chemistry labs. Researchers, students, teachers, and professionals working with chemical solutions need quick, accurate calculations of molarity (concentration) in NC format. This tool simplifies the process by providing a straightforward interface to input data and receive precise results without any setup or registration. Ideal for anyone needing to perform concentration calculations efficiently.