More Calculators
706 free more calculators tools in the Calculators & Converters collection — every one runs in your browser with no signup and no uploads. Page 3 of 8.
Final Fantasy XIV Time-to-Max-Level Calculator
Forecast the days and hours to reach max level from your play rate
F-Gas Quota & HFC Phase-Down Calculator
Calculate F-gas CO2-equivalent and check EU quota phase-down position
Field of View Calculator
Calculate horizontal, vertical, and diagonal field of view for any lens and sensor
Filament Spool Remaining Calculator
Estimate grams remaining on a partly used spool from weight or coil diameter
Fillet Weld Size & Strength Calculator
Calculate the required fillet weld leg size to carry a given shear or tensile load
Fillet Weld Effective Throat Calculator
Calculate effective and theoretical throat size from leg size for any weld profile
First Layer Line Width Optimizer
Calculate optimal first-layer width and height for best bed adhesion
Fishing Bag Limit Tracker
Log your catch by species and size and track it against local bag limits.
Fishing Casting Distance Estimator
Estimate casting distance from rod length, lure weight, and line
Fishing Knot Strength Calculator
Estimate knot breaking strength as a percent of your line's test
Flash Guide Number Calculator
Calculate flash power, distance, or aperture from a guide number
Flash Power Reduction in Stops Calculator
Convert a flash power reduction (1/2, 1/4, 1/8...) into f-stops and the aperture or distance change to match it.
Flight Carbon Footprint Calculator
Calculate CO2e emissions for any flight with radiative forcing
Flight Plan Fuel Summary Calculator
Summarize multi-leg fuel burn, reserves, and total required fuel for a flight plan
Floor Joist Span Calculator
Verify allowable floor joist span for lumber size, species, and live load
24-Hour Fluid Balance Calculator
Tally ins and outs for daily net fluid balance on the ward.
Fly Line Trolling Depth Calculator
Find the depth of a sinking fly line at any sink time and speed
Fly Tying Hook Size & Hatch Match Reference
Match hook size to natural insect size for tying flies
Focus Breathing Compensation Calculator
Estimate focal length shift from focus breathing at any distance
Focus Peaking Contrast Threshold Guide
Select the right focus peaking sensitivity level for your aperture and subject
Font Size Conversion Chart
Convert between pt, px, em, rem, and percentage instantly
Fantasy Football Points Calculator
Calculate fantasy football points for any scoring system.
NFL 4th Down Go-for-It Calculator
Decide whether to go, punt, or kick on 4th down using EPA
NFL Passer Rating Calculator
Calculate an NFL quarterback's passer rating from game stats.
NFL QBR (Total QBR) Estimator
Estimate Total QBR from passing, rushing, and sack stats
FPV Video Frequency Channel Planner
Plan FPV frequencies to avoid interference at a flying session
Franchise Royalty & Fee Calculator
Calculate monthly franchise royalties, ad-fund contributions, and net-to-franchisee
Freight Class (NMFC) Calculator
Determine LTL freight class from density, stowability, handling, and liability
Aircraft Fuel Burn & Endurance Calculator
Calculate endurance, range, and reserve fuel from burn rate and usable fuel
Fuel Cost vs CO2 Comparator
Compare petrol, diesel, LPG, and EV on cost and CO2 per mile
Freight Fuel Surcharge Calculator
Calculate carrier fuel surcharges from base rate and published FSC percentage
Companion Planting Reference Tool
Look up companion and antagonist plant pairings for your garden
Boiler Replacement Sizing Calculator
Size a replacement hot-water boiler from Manual J heat loss or connected radiation.
Gas Appliance Combustion Efficiency Calculator
Estimate stack efficiency from flue gas O₂ or CO₂ and temperature (Siegert)
GC Content Calculator
Calculate GC percentage and base composition for any nucleotide sequence
Trade Intensity & Export Revenue Estimator
Estimate export revenue potential by market using GDP per capita and trade intensity
Generator Fuel Runtime Calculator
Estimate how long a gasoline, diesel, or propane generator runs on a given fuel quantity.
Glasgow Coma Scale (GCS) Calculator
Score eye, verbal, and motor responses for consciousness level
Glide Distance Calculator
Calculate engine-out glide range and time aloft from height and glide ratio
Global Plastics Treaty Readiness Checker
Assess your plastic product strategy against the proposed UN Plastics Treaty
GMAT Target Score by MBA Program
Find the competitive GMAT range for top MBA programs.
Golf Course Handicap Calculator
Convert your WHS Handicap Index to a Course Handicap
Golf Club Distance & Loft Reference
Match your swing speed and carry distance to the right club.
Golf Score Differential Calculator
Calculate the score differential for a round under WHS.
Golf Stableford Points Calculator
Calculate Stableford points from hole-by-hole gross scores
Golf Wind Adjustment Calculator
Adjust your golf club selection for headwind, tailwind, or crosswind.
GRACE ACS Outcome Score
In-hospital and 6-month mortality risk in ACS
Class Rank Estimator
Estimate your class rank from GPA and distribution data.
Pass Mark Threshold Calculator
Check if you meet the pass mark for any grading system.
Grain Bill Color & OG Optimizer
Adjust a two-malt grain bill to hit both your target OG and SRM colour
Grain Shrink & Drying Cost Calculator
Calculate shrink weight loss and drying cost to reach standard moisture
Gravity Points Per Pound Calculator
Predict your original gravity from grain weight, extract potential, and efficiency.
GRE Analytical Writing Score Guide
Understand GRE AW scores and their percentile implications
Green Lease Clause Scorer
Score a commercial lease against green lease best-practice clauses
Greenwashing Risk Scorer
Score your sustainability claims for greenwashing risk under the EU Green Claims Directive
Ground Fault Loop Impedance Calculator
Verify that fault current through the EGC is enough to trip the breaker in time.
Grow Light PPFD & DLI Calculator
Calculate PPFD and daily light integral for any grow light setup
Grow Tent Ventilation & CFM Calculator
Size an inline extraction fan for your grow tent in CFM
IGF-1 Standard Deviation Score Calculator
Compute IGF-1 SDS from age- and sex-specific reference ranges
GZ Stability Curve Basic Estimator
Estimate righting lever GZ values and metacentric height from simplified ship inputs
Hardness Conversion Calculator
Convert between Rockwell C (HRC), Brinell (HB), Vickers (HV), and tensile strength
Hardness Scale Conversion Chart
Convert between Rockwell, Brinell, Vickers, and tensile strength
Harmonic Derating (K-Factor) Calculator
Calculate transformer K-factor from a harmonic current spectrum to select a K-rated transformer
Harmonic Series Calculator
Generate the harmonic series (overtones) above any fundamental frequency
Harvest Moisture Loss & Shrink Calculator
Calculate actual vs. standard-moisture bushels and moisture-shrink cost at harvest
Hat Size Conversion Chart
Convert hat sizes between US, UK, EU, S/M/L, and head circumference
Smart Contract Security Audit Checklist
Self-audit a Solidity contract against common vulnerability classes
Hazmat / Dangerous Goods Surcharge Estimator
Estimate hazmat surcharges for ground, air, and ocean dangerous goods
HEART Score for Chest Pain
Identify low-risk chest pain for safe ED discharge
Heat Pump Balance Point Calculator
Find the outdoor temp where heat pump capacity equals building heat loss for backup staging
Heat Pump COP & HSPF Calculator
Calculate heat pump COP from output and power, and estimate seasonal HSPF
Heat-Set Insert Hole Size Calculator
Get the correct boss hole diameter for heat-set threaded inserts
Haematologic Response Criteria Calculator (CR/VGPR/PR)
Classify myeloma treatment response by IMWG criteria
Herbicide / Pesticide Tank Mix Calculator
Calculate product volume per tank and per acre from label rate and field size
Holliday-Segar Fluid Maintenance Calculator
Maintenance IV fluid rate for paediatric and adult patients
UK Honours Borderline Case Tool
Check if your weighted average is in a degree-classification borderline zone.
Honours Thesis Grade Impact Calculator
See how your thesis grade shifts your final degree classification
Hop Substitution AA% Adjuster
Adjust hop weight when swapping varieties so the bitterness stays the same.
HS Code & Duty Helper
Look up HS-code chapter/heading and indicative duty rates by commodity
HSK Chinese Proficiency Level Checker
Find your HSK level from vocabulary count.
HSA vs FSA Calculator
Compare HSA and FSA tax savings for 2026 contributions
Human Rights Due Diligence Checker (UNGPs)
Self-assess supply-chain human rights due diligence against the UNGPs
Hunting BDC Reticle Holdover Calculator
Calculate which BDC reticle subtension to use at any hunting distance
Ductwork Heat Gain / Loss Calculator
Estimate BTU/h heat gain or loss from supply and return ducts in unconditioned spaces.
Heat Exchanger NTU-Effectiveness Calculator
Find heat exchanger effectiveness and outlet temperatures with the ε-NTU method.
Refrigerant GWP & EPA Section 608 Quantity Calculator
Calculate annual leak rate and the EPA-required repair trigger from system charge weight.
Hydronic Circulater Pump Selection Calculator
Get system GPM and head loss to select a residential hydronic zone circulator
IATA Live Animal Regulations Quick Reference
Look up container type, ventilation, and document requirements for air live-animal shipments
IBU Rager Calculator
Calculate hop bitterness using the Rager utilization formula
IBU Tinseth Calculator
Calculate International Bitterness Units using the Tinseth formula
IELTS Score Requirements Checker
Check whether your IELTS score meets university requirements.
Industrial IoT Cybersecurity Risk Checker (IEC 62443)
Assess ICS and OT system cyber risk against IEC 62443 security levels
Impermanent Loss Calculator
Calculate impermanent loss for AMM liquidity pool positions
Incoterms 2020 Selector & Reference
Choose the right Incoterm and see risk-transfer, cost, and clearance rules
INR Reversal — FFP or PCC Dose Calculator
Calculate FFP units or PCC dose to reverse an elevated INR
Insulin Sliding Scale & Drip Rate Calculator
Build a correction scale and convert insulin units/hr to a pump rate
Internal Carbon Price (ICP) Impact Calculator
Model the P&L impact of an internal carbon price across business units
International Grade Conversion Tool
Convert grades from 30+ countries to US GPA or ECTS
Ionised Calcium Estimator from Total Calcium and pH
Estimate ionised Ca when direct measurement is unavailable
Ireland Import Duty & Customs Calculator
Estimate landed cost including Ireland import duties, VAT, and customs fees.