Calculate percentages, find what percent one number is of another, and compute percentage increase or decrease.
Calculate simple interest and total amount using Principal, Rate, and Time. Includes reverse calculations.
Compute compound interest for annual, half-yearly, quarterly and monthly compounding frequencies.
Find profit or loss percentage, selling price, or cost price. Essential for competitive exam problems.
Calculate the arithmetic mean of a set of numbers along with sum, count, minimum and maximum.
Find the Highest Common Factor and Lowest Common Multiple of two or more numbers instantly.
Solve for time, speed, or distance when any two values are known. Supports km/h, m/s and miles/hr.
Simplify ratios of two or three numbers to their lowest terms. Find equivalent ratios and decimal values.
Practice what you calculate
These tools teach the formula — SpeedMath's practice modules help you solve them at exam speed. 30+ topics, instant feedback, leaderboards.
Frequently Asked Questions
Yes, all math tools and calculators on SpeedMath are completely free. No account or subscription required — just open the tool and start calculating.
The Percentage Calculator, Simple Interest, Compound Interest, Profit & Loss, and Time Speed Distance calculators cover the most frequently tested topics in SSC CGL, IBPS PO, SBI Clerk, and RRB exams.
Yes. Every calculator shows a detailed breakdown — intermediate values, formulas used, and the final answer — so you understand the method, not just the result.
Absolutely. All tools are fully responsive and work on any device — mobile, tablet, or desktop. No app download needed.
SpeedMath tools are designed specifically for competitive exam preparation. Each tool shows the formula, a step-by-step breakdown of the calculation, and links to related practice modules so you can immediately test your understanding — not just get an answer.