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 4 of 8.
Dual Native ISO Equivalence Calculator
Find equivalent exposures across a camera's dual native ISO base values
ISO Tolerance & Fit Calculator
Find hole and shaft limits for any ISO fit class and nominal diameter
ISO 14001:2015 Environmental Management Gap Checker
Self-assess ISO 14001 EMS readiness before certification
ISO 27001:2022 Gap Checker
Identify ISO 27001 Annex A control gaps before certification
IV Solution Tonicity & Compatibility Estimator
Check tonicity of compounded IV admixtures before infusion
Japan Import Duty & Customs Calculator
Estimate landed cost including Japan import duty and 10% consumption tax.
JLPT Japanese Proficiency Level Checker
Identify your JLPT level from grammar and vocab knowledge.
Jury Duty Pay Calculator
Calculate total jury pay, employer supplement, and income gap for any US state
Kleihauer-Betke Feto-Maternal Haemorrhage Estimator
Estimate feto-maternal bleed volume and anti-D dose
Knurling RPM & Feed Calculator
Calculate spindle speed and feed for clean straight or diamond knurling
Lactate Clearance Calculator
Percentage lactate clearance as a sepsis resuscitation endpoint
Lathe Taper Calculator
Calculate compound-slide angle or tailstock offset for any taper
Layer Height vs Print Quality Analyzer
Compare layer height options against nozzle diameter and print quality
Simplified LCA Hotspot Identifier
Identify the top carbon and energy hotspots across a product's lifecycle
Lease Break Penalty Calculator
Calculate lease-termination penalties, re-letting fees, and landlord duty to mitigate
Lens Breathing Compensation for Video
Calculate digital zoom compensation to counteract focus breathing in video
Astrophotography Light Pollution Exposure Calculator
Calculate the optimal sub-exposure for your sky's light pollution
Lighting Power Density (LPD) Calculator
Calculate installed lighting power density in W/ft² and compare against ASHRAE 90.1 limits.
Visual Limiting Magnitude Calculator
Estimate the faintest visible star with any telescope aperture
LiPo C-Rating & Max Burst Current Calculator
Find safe continuous and burst current limits for any LiPo pack
LLC Dissolution Asset Distribution Calculator
Compute member distributions after paying LLC debts and liquidation costs
Long Exposure Noise & Hot Pixel Estimator
Predict noise level for long exposures based on sensor temperature and ISO
Lorcana Ink Curve Analyzer
Visualize and optimize your Lorcana ink curve
LPG / Propane Conversion & Sizing Calculator
Convert propane BTU to gallons, size a storage tank, and check orifice sizing vs natural gas.
LSAT Logic Games Section Timer
Practice LSAT Logic Games with an authentic section timer.
LSAT Target Score by Law School Tier
Find the LSAT score you need for your target law school.
LTL vs. FTL Decision Tool
Compare cost-per-cwt for LTL and FTL to find the break-even shipment size
Mach Number Calculator
Convert between true airspeed and Mach number at any air temperature
All-Grain to Extract Conversion Calculator
Convert all-grain base malt amounts into equivalent DME or LME weights.
Masonry Lintel Load Calculator
Find the load on a CMU or brick lintel over an opening using 45-degree arching
Maximum Allowable Blood Loss (MABL) Calculator
Perioperative transfusion trigger from blood volume and target Hb
MCAT Target Score by Medical School Tier
Find the MCAT score range for MD programs.
Mediation Settlement Range Tool
Calculate a realistic settlement range using expected value and BATNA analysis
10× Medication Error Detection — Dose Plausibility Checker
Flag 10-fold dosing errors by checking calculated dose against safe range
MELD & MELD-Na Score Calculator
Liver disease severity and transplant waitlist priority score
Winter's Formula — Expected pCO2 in Metabolic Acidosis
Detect superimposed respiratory disorders in metabolic acidosis
METAR Decoder
Parse and translate a raw METAR weather report into plain English
Metric–Imperial Conversion Reference
Key conversion factors for length, mass, volume, and temperature
Microgrid Load Shedding Priority Calculator
Assign load-shedding priority tiers to circuits and find generator or battery runtime per tier.
Microphone Self-Noise & SNR Calculator
Calculate microphone SNR and minimum detectable SPL from spec-sheet values
MiFID II Retail Investor Suitability Self-Assessment
Self-assess your risk profile against MiFID II suitability criteria
MIG Wire Diameter Selector
Pick the right wire diameter for any MIG welding application and material thickness
Gain Staging Calculator for Mixing
Track signal level and headroom at every stage of your chain
MMA Fighter Statistical Comparison
Compare two MMA fighters across UFC-style performance stats.
MMA Judges Scorecard Simulator
Simulate MMA judges' scores for a 3 or 5-round fight.
MOA / MIL Scope Adjustment Calculator
Convert bullet impact error to scope clicks in MOA or MRAD.
Mortise & Tenon Sizing Calculator
Calculate tenon thickness, length, and cheek-glue area for structural joints
Motor Starting (LRA) Current Calculator
Estimate locked-rotor amperes and starting kVA for AC induction motors by NEMA code letter.
Nature-Positive Risk Screener (TNFD)
Screen business activities for nature-related dependencies and impacts (TNFD LEAP)
ND Filter Exposure Calculator
Calculate the long-exposure shutter speed needed with ND filters
NEC Tap Rule Calculator (210% and 100 A Rules)
Check NEC 240.21 tap rules for 10-ft, 25-ft, and outside feeder taps
Multifamily Dwelling Load Calculation (NEC 220.84)
Size service for apartment buildings using NEC 220.84 optional demand factors
NEC 310.16 Full Ampacity Table Lookup
Searchable NEC 310.16 conductor ampacity table for copper and aluminum at 60/75/90 °C
NEC Article 430 Motor Circuit Summary Calculator
Get FLC, conductor, max OCPD, overload, and disconnect for a motor in one step.
NEC Demand Factor Calculator
Apply NEC Article 220 demand factors to reduce calculated load for services and feeders.
NEC GFCI/AFCI Requirement Checker
Look up 2023 NEC GFCI and AFCI protection requirements by room type and circuit voltage
NEC Kitchen Circuit Requirements Calculator
List the dedicated kitchen circuits required per NEC 210.52, 210.8, and 210.12
Panel Schedule / Load Center Calculator
Build a load center panel schedule, auto-assign circuits to legs, and compute total demand.
NEC Chapter 9 Table 9 AC Resistance & Reactance Lookup
Look up AC resistance and reactance per 1000 ft by conductor and conduit type
Neonatal Drug Dose Reference Calculator
Weight-based neonatal dosing for antibiotics, caffeine, and NICU drugs
Net Metering Payback Period Calculator
Estimate solar payback period and 25-year ROI from net-metering credits and system cost
Net Zero Target Pathway Calculator
Build a linear or science-based net zero reduction pathway from base year
NEWS2 Score Calculator
National Early Warning Score 2 for patient deterioration detection
NHTSA Complaints Lookup
Search NHTSA consumer complaints for any vehicle year, make, and model
NHTSA Vehicle Make & Model Lookup
Browse all makes and models in the NHTSA vPIC database without an API key
NHTSA Recall Lookup
Check any vehicle for open NHTSA safety recalls by VIN using the free public API
NHTSA Safety Ratings Lookup
Retrieve 5-Star Safety Ratings for any model year vehicle from NHTSA
Product Liability Classification Checker for Digital Products (EU/UK)
Find out if your digital or connected product carries producer liability
NIS2 Directive Applicability Checker
Determine if your organisation is an essential or important entity under NIS2
Nitrogen Use Efficiency (NUE) Calculator
Calculate NUE percentage from crop uptake and fertilizer applied to optimise N applications
Non-Compete Clause Reasonableness Tool
Assess non-compete enforceability by state using duration, geography, and scope
Nozzle Material Wear Life Estimator
Estimate brass nozzle wear life from abrasive filament use hours
NPF Rule Star Trail Calculator
Max shutter speed before star trailing with the accurate NPF rule
Number System Conversion Reference
Binary, octal, decimal, and hex equivalents side by side
Ocean Freight Rate Comparison Tool
Compare FCL and LCL all-in costs to find the break-even CBM for your shipment
OECD Pillar Two Global Minimum Tax Calculator
Estimate top-up tax under the OECD Pillar Two 15% global minimum tax.
Off-Grid Load Audit Calculator
Total your daily watt-hours from appliance wattage and runtime for off-grid solar design.
OG/FG/ABV Advanced Calculator
Full original gravity, final gravity, and ABV with attenuation metrics
Online Course Completion Planner
Plan daily lesson targets to finish a course by deadline.
Beer Freshness Window Calculator
Estimate shelf life and freshness windows by style and packaging method
Arterial Oxygen Content (CaO2) Calculator
Calculate total oxygen content from haemoglobin and SpO2/PaO2
Oxygen Delivery (DO₂) & Consumption (VO₂) Calculator
Haemodynamic oxygen transport indices from cardiac output and Hb.
Packaging Carbon Footprint Calculator
Estimate CO2e for packaging across plastic, glass, paper, and metal
Packaging Recyclability On-Pack Labelling Checker
Check the correct recyclability label for your packaging material
Paddock Rotation Calculator
Calculate rest period, paddock number, and grazing days for rotational grazing
Padel Match Score Calculator
Track a padel match with golden point and correct tiebreak rules.
Paediatric Emergency Drug Dose Reference
One-weight-entry lookup for all peds ACLS and RSI drugs.
Paediatric GCS Calculator (Children <2 years)
Age-adapted Glasgow Coma Scale for infants and toddlers
Panorama Nodal Point Calculator
Find the no-parallax point for stitched panorama photography
Parkland Burn Formula — IV Fluid Resuscitation
Calculate 24-hour fluid resuscitation volume for burn injuries
Modified Brooke Formula — Burn Fluid Resuscitation
Alternative lower-volume 24-hour IV fluid calculation for burn injuries
Parti-Gyle Gravity Calculator
Split runnings into multiple beers and predict each runnings' gravity
Patent Term Adjustment (PTA) Calculator
Estimate USPTO PTA days under 35 U.S.C. 154(b) A, B, and C delays
Pathfinder 2e Point Buy Calculator
Build Pathfinder 2e characters with ability boosts and flaws
PCI DSS Scope Reduction Tool
Determine your PCI DSS SAQ type and cardholder data environment scope
PCR Master Mix Calculator
Scale reagent volumes for any number of PCR reactions
Neonatal PDA Treatment Candidacy Estimator
Score clinical and echo features for PDA intervention decisions
Pellet to Whole Hop Conversion
Convert hop weights between pellet and whole/plug hop formats
Pest Economic Threshold Reference Tool
Look up economic thresholds for common field-crop pests to decide spray or no-spray
Pet Vaccination Schedule Calculator
Generate a puppy or kitten vaccine and booster schedule