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Measurement Converter

Bidirectional conversion across all unit categories

Kilogram (kg)

Gram (g)

Pound (lb)

Ounce (oz)

Milligram (mg)

Metric Ton (t)

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Currency Converter

Live exchange rates via Frankfurter API

Amount

From

To

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Target Grade Calculator

Find out the minimum score needed on your final exam

Current Grades & Weights

Assignment

Grade (%)

Weight (%)

Target Overall Grade (%)

Final Exam Weight (%)

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Statistical Quick-Calc

Instant descriptive statistics from any number list

Enter numbers — separated by commas, spaces, or new lines

No numbers detected yet

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Enter at least 2 numbers to see statistics

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Academic Date Calculator

Days between dates & semester week tracker

Date Difference Calculator

Start Date

End Date

Quick fill End Date:

Semester Week Tracker

Semester Start Date

Enter your semester start date to track your current week

⚛️

Physics & Earth Science Reference

Standard formulas, constants & variables with units

cSpeed of Light

≈ 3.00 × 10⁸ m/s

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gAcceleration Due to Gravity

≈ 9.81 m/s²

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NₐAvogadro's Number

≈ 6.022 × 10²³ mol⁻¹

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vₛSpeed of Sound in Air

≈ 343 m/s

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Spatial & Field Calculators

Coordinates, distances, scales & areas

Latitude (DD)

−90 to 90

Longitude (DD)

−180 to 180