🎓 7+ Tools
Students Tools
GPA, grade, fraction and scientific calculators for schoolwork and exams.
Popular
Popular Students Tools
GPA Calculator
Calculate your GPA on the 4.0 scale with credits and letter grades.
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Grade Calculator
Weighted grade calculator — see your current grade and what you need on the final.
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Fraction Calculator
Add, subtract, multiply, divide fractions with step-by-step working.
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Scientific Calculator
sin, cos, tan, log, ln, sqrt, powers, factorial, π and e. Works in browser.
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All Tools
All 7+ Students Tools
GPA Calculator
Calculate your GPA on the 4.0 scale with credits and letter grades.
Open →
Grade Calculator
Weighted grade calculator — see your current grade and what you need on the final.
Open →
Fraction Calculator
Add, subtract, multiply, divide fractions with step-by-step working.
Open →
Scientific Calculator
sin, cos, tan, log, ln, sqrt, powers, factorial, π and e. Works in browser.
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Percentage Error
Calculate % error between experimental and theoretical values with formula.
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Roman Numeral Converter
Convert numbers to Roman numerals or Roman numerals to numbers (1–3999).
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CGPA Calculator
Convert CGPA to percentage on 4.0, 5.0, 7.0 and 10.0 scales.
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FAQ
Common Questions
Yes. Every Students tool on ToolsNova is completely free, with no signup, no usage limits, and no hidden fees.
No. All Students tools work instantly in your browser — no account, no email, no signup required.
Yes. Every Students tool runs entirely in your browser. Nothing you type or upload is ever sent to our servers.
Yes. All Students tools are fully responsive and work on desktop, tablet and mobile devices.