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Math Tools
Equations, matrices, triangle and standard deviation calculators.
Popular
Popular Math Tools
Quadratic Solver
Solve ax²+bx+c=0 with discriminant and step-by-step working.
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Triangle Calculator
Calculate sides, angles, area and perimeter from any 3 values.
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Standard Deviation
Mean, median, variance, and standard deviation from any dataset.
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Significant Figures
Count sig figs and round any number to 1–5 significant figures.
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All Tools
All 5+ Math Tools
Quadratic Solver
Solve ax²+bx+c=0 with discriminant and step-by-step working.
Open →
Triangle Calculator
Calculate sides, angles, area and perimeter from any 3 values.
Open →
Standard Deviation
Mean, median, variance, and standard deviation from any dataset.
Open →
Significant Figures
Count sig figs and round any number to 1–5 significant figures.
Open →
Matrix Calculator
Add, multiply, transpose matrices and calculate determinants.
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FAQ
Common Questions
Yes. Every Math tool on ToolsNova is completely free, with no signup, no usage limits, and no hidden fees.
No. All Math tools work instantly in your browser — no account, no email, no signup required.
Yes. Every Math tool runs entirely in your browser. Nothing you type or upload is ever sent to our servers.
Yes. All Math tools are fully responsive and work on desktop, tablet and mobile devices.