All tools
Every free tool on Tool Corner — all 193 of them, organised into 13 categories. Use the sticky bar above or search to jump around.
Math & Numbers
15 tools
Percentage CalculatorMath & Numbers
Scientific CalculatorMath & Numbers
Random Number GeneratorMath & Numbers
Fraction CalculatorMath & Numbers
Average CalculatorMath & Numbers
Daily Mental Maths TrainerMath & Numbers
Ratio CalculatorMath & Numbers
Roman Numeral ConverterMath & Numbers
Basic CalculatorMath & Numbers
Algebra CalculatorMath & Numbers
Quadratic Equation CalculatorMath & Numbers
LCM & GCD CalculatorMath & Numbers
Exponent CalculatorMath & Numbers
Algebra & Advanced Maths CalculatorsMath & Numbers
Percentage, Fraction & Ratio CalculatorsMath & Numbers
Finance & Money
42 tools
Salary CalculatorFinance & Money
Tax CalculatorFinance & Money
Loan CalculatorFinance & Money
EMI CalculatorFinance & Money
Mortgage CalculatorFinance & Money
Mortgage Overpayment CalculatorFinance & Money
Stamp Duty CalculatorFinance & Money
LBTT CalculatorFinance & Money
LTT CalculatorFinance & Money
Rent vs Buy CalculatorFinance & Money
Mutual Fund PlannerFinance & Money
SIP CalculatorFinance & Money
Step-Up SIP CalculatorFinance & Money
Lump Sum CalculatorFinance & Money
SWP CalculatorFinance & Money
Step-Up SWP CalculatorFinance & Money
SIP to SWP PlannerFinance & Money
Lump Sum to SWP PlannerFinance & Money
Compound InterestFinance & Money
Investment ReturnFinance & Money
Inflation CalculatorFinance & Money
VAT CalculatorFinance & Money
Savings Goal CalculatorFinance & Money
Markup CalculatorFinance & Money
Auto Loan CalculatorFinance & Money
Personal Loan CalculatorFinance & Money
Credit Card Payoff CalculatorFinance & Money
Debt Snowball vs Avalanche CalculatorFinance & Money
Freelance Rate CalculatorFinance & Money
Job Offer ComparatorFinance & Money
Emergency Fund CalculatorFinance & Money
APR CalculatorFinance & Money
Simple Interest CalculatorFinance & Money
Retirement CalculatorFinance & Money
ROI CalculatorFinance & Money
Profit Margin CalculatorFinance & Money
Break-Even CalculatorFinance & Money
Commission CalculatorFinance & Money
Pay, Tax & Business CalculatorsFinance & Money
Loan & Borrowing CalculatorsFinance & Money
Savings & Investment CalculatorsFinance & Money
SIP & SWP PlannersFinance & Money
Health & Fitness
15 tools
BMI CalculatorHealth & Fitness
Calorie CalculatorHealth & Fitness
Protein CalculatorHealth & Fitness
Body Fat CalculatorHealth & Fitness
Water IntakeHealth & Fitness
Sleep CalculatorHealth & Fitness
Due Date CalculatorHealth & Fitness
Running Pace CalculatorHealth & Fitness
Ideal Weight CalculatorHealth & Fitness
Heart Rate ZonesHealth & Fitness
BMR CalculatorHealth & Fitness
TDEE CalculatorHealth & Fitness
Macro CalculatorHealth & Fitness
Fitness & Body CalculatorsHealth & Fitness
Nutrition & Energy CalculatorsHealth & Fitness
Labs & Simulations
19 tools
Labs & SimulationsLabs & Simulations
The Kitchen & Gut LabLabs & Simulations
Food Combination CheckerLabs & Simulations
Digestion SimulatorLabs & Simulations
Bloating & Intolerance CheckerLabs & Simulations
Physics SimulationsLabs & Simulations
Computing & Electronics SimulationsLabs & Simulations
Subnet & CIDR VisualiserLabs & Simulations
Logic Gate SimulatorLabs & Simulations
Projectile Motion SimulatorLabs & Simulations
Pendulum SimulatorLabs & Simulations
Free Fall & Terminal Velocity SimulatorLabs & Simulations
Seesaw Balance & Torque SimulatorLabs & Simulations
Baking Soda & Vinegar Reaction SimulatorLabs & Simulations
Why Milk CurdlesLabs & Simulations
Caramelisation SimulatorLabs & Simulations
Egg White Foam SimulatorLabs & Simulations
Bayes Medical Test VisualiserLabs & Simulations
Compound Interest Visual SimulatorLabs & Simulations
Education & Grades
7 toolsConstruction & DIY
5 toolsEngineering
19 tools
Beam Load CalculatorEngineering
Force CalculatorEngineering
Resistor Colour Code CalculatorEngineering
LED Resistor CalculatorEngineering
Ohm's Law CalculatorEngineering
Power CalculatorEngineering
Pressure CalculatorEngineering
Stress CalculatorEngineering
Torque CalculatorEngineering
Work CalculatorEngineering
Kinetic Energy CalculatorEngineering
Strain CalculatorEngineering
Young's Modulus CalculatorEngineering
Fluid Pressure CalculatorEngineering
Reynolds Number CalculatorEngineering
Resistance CalculatorEngineering
Electronics CalculatorsEngineering
Materials & Structures CalculatorsEngineering
Mechanics & Energy CalculatorsEngineering
Converters
8 toolsTime & Date
11 tools
Age CalculatorTime & Date
Date DifferenceTime & Date
Countdown TimerTime & Date
StopwatchTime & Date
Time Duration CalculatorTime & Date
Working Days CalculatorTime & Date
Time Unit ConverterTime & Date
Generation CalculatorTime & Date
Months, Weeks & Years ConverterTime & Date
Date CalculatorsTime & Date
Duration Calculators & TimersTime & Date
Everyday Life
7 toolsText & Productivity
16 tools
Timestamp ConverterText & Productivity
Color ConverterText & Productivity
Word CounterText & Productivity
Case ConverterText & Productivity
JSON FormatterText & Productivity
Password GeneratorText & Productivity
QR Code GeneratorText & Productivity
Base64 ConverterText & Productivity
URL EncoderText & Productivity
Hash GeneratorText & Productivity
UUID GeneratorText & Productivity
HTML EntitiesText & Productivity
Lorem IpsumText & Productivity
Keyboard Shortcut TrainerText & Productivity
Encoding & Data ToolsText & Productivity
Text & Writing ToolsText & Productivity
Fun & Random
5 toolsGaming & Play
24 tools
Minecraft Circle GeneratorGaming & Play
Minecraft Beacon CalculatorGaming & Play
Mouse Sensitivity ConverterGaming & Play
eDPI CalculatorGaming & Play
Fortnite XP CalculatorGaming & Play
Frame Time CalculatorGaming & Play
K/D Ratio CalculatorGaming & Play
Resolution Scale CalculatorGaming & Play
Win Rate CalculatorGaming & Play
Gacha Pity CalculatorGaming & Play
Pokémon Type Effectiveness CalculatorGaming & Play
Minecraft Smelting CalculatorGaming & Play
Minecraft Nether Portal CalculatorGaming & Play
Minecraft XP CalculatorGaming & Play
Minecraft Sphere GeneratorGaming & Play
Minecraft Build Material CalculatorGaming & Play
Robux Tax CalculatorGaming & Play
Robux Before-Tax CalculatorGaming & Play
Robux to USD CalculatorGaming & Play
Roblox DevEx CalculatorGaming & Play
Aim & Performance CalculatorsGaming & Play
Minecraft Build & XP CalculatorsGaming & Play
Odds, Stats & MatchupsGaming & Play
Roblox & Fortnite CalculatorsGaming & Play
Worked Answers
8 pagesNot calculators — the same sums already worked through, figure by figure, for the amounts people ask about most.
Loan repayments, 15 worked amounts£5,000 over 3 years to £100,000 over 25
Mortgage payments by deposit sizeSix purchases at 90%, 80% and 75% LTV
Income tax at six salaries£30,000 to £120,000, with the taper
Stamp duty at six pricesFirst-time buyer, mover and additional
VAT added and extractedFive amounts at the 20% standard rate
Compound growth, three plansLump sum, monthly top-ups and 20 years
Beacon blocks, all four tiers164 blocks for a full one, 83 for tier 3
Block counts by build sizeTwelve builds in blocks, stacks and shulkers
Robux in real money, ten amounts$1,250 to buy 100k, $380 cashing out
Robux after the 30% tax, twelve pricesA 500 R$ sale leaves 350; list 715 to keep 500