Education Calculators
Education calculators including GPA, grade, test score, student loan and scholarship estimators.
22 calculators
4.0 GPA Calculator — Unweighted Grade Point Average
Free 4.0 GPA calculator: convert whole-letter grades (A=4, B=3, C=2) and credit hours into your unweighted grade point average instantly.
College GPA Calculator — Semester & Cumulative on 4.0
College GPA calculator: enter course grades and credit hours plus your prior cumulative GPA to get semester and updated cumulative GPA on the 4.0 scale.
Cumulative GPA Calculator — Project Future Semester Impact
Free cumulative GPA calculator. Enter your current GPA, credits earned, and next semester projected GPA and credits to see your new overall GPA.
Final Grade Calculator — What You Need on the Final
Final grade calculator: see what exam score you need to hit your target class grade, or compute your final grade from your current average and exam score.
GPA Calculator — Weighted Grade Point Average on 4.0 Scale
Free weighted college GPA calculator. Enter grade points (A=4.0, B=3.0, etc.) and credit hours to find your semester GPA instantly.
Grade Calculator — Weighted Class Grade & Final Exam Needed
Weighted grade calculator: find your current class grade from assignment scores and weights, and see the final exam score needed for your target grade.
Grade Percentage Calculator — Score to Percent
Free grade percentage calculator: convert earned vs total points to a percent, the 4.0 GPA point, a numeric letter band and a weighted course grade.
High School GPA Calculator — AP Weighting & Class Rank
Free high school GPA calculator: unweighted 4.0 scale plus weighted Honors/AP/IB bonus points, with estimated class rank percentile.
Law of Cosines Calculator: Solve Any Triangle Side
Free law of cosines calculator: enter two sides and the included angle to instantly solve the missing side, area, perimeter and remaining angles.
Linear Equation Calculator — Solve y = mx + b for x
Free linear equation solver for y = mx + b. Enter slope, intercept and target y to find x, the x-intercept and the line equation instantly.
Scientific Notation Calculator — Convert & Multiply
Free scientific notation calculator: convert any decimal to a x 10^n and E-notation, multiply numbers in scientific form, and view engineering notation.
Significant Figures Calculator — Round to N Sig Figs
Free sig figs calculator: round any number to N significant figures and see the scientific-notation coefficient, exponent and least-significant-digit value.
Solve for x Calculator — Linear Equation Solver
Free solve-for-x calculator for linear equations of the form ax + b = c. Enter a, b, and c to instantly find x with step-by-step algebra.
Sphere Volume Calculator — Volume & Surface Area
Free sphere volume calculator: enter the radius and pick cm/m/in/ft to compute V = 4/3 π r³, surface area, circumference, and liters.
Standard Error Calculator — SEM & 95% Confidence Interval
Free standard error calculator: compute the standard error of the mean (SE = s/√n) and the 90/95/99% confidence interval from sample mean, SD, and n.
Surface Area Calculator — Cube, Prism, Cylinder & Sphere
Surface area calculator for 3D solids: cube, rectangular prism, cylinder and sphere. Get total, base and lateral area instantly.
T Score Calculator — One-Sample t-Statistic
Free t score calculator: compute the one-sample t-statistic, standard error, degrees of freedom and Cohen's d from sample mean, population mean, s and n.
Test Grade Calculator — Score Percent, Letter & Final Needed
Test grade calculator: convert earned/total exam points to a percent and +/- letter grade, then find the final score needed for your target course grade.
Weighted GPA Calculator — AP, Honors & IB on 5.0 Scale
Free weighted GPA calculator: AP, Honors and IB bonus points on the 5.0 scale. Enter grades and credits to see your weighted GPA instantly.
Weighted Grade Calculator — Class Average and Letter Grade
Free weighted grade calculator: combine homework, quiz, midterm and final scores with category weights to find your class average and letter grade.
Words to Pages Calculator — Single & Double Spaced
Free words-to-pages converter: estimate pages for your essay, paper, or manuscript at 500 words/page single-spaced or 250 words/page double-spaced.
WPM Calculator — Words Per Minute Reading Speed
Free WPM calculator: compute words-per-minute reading speed from total words and time. Compare to the 250 wpm adult average and estimate reading time.