Commerce & Travel Calculators
Calculate volumetric shipping weight (DIM), profit margins, markups, discounts, EV charging time and trip fuel costs. The Calconova Commerce & Travel Calculators directory brings together 19 verified calculators tailored to United Kingdom statutory regulations and international standards. Every tool runs locally in your browser on our enterprise Decimal.js (IEEE-754) math engine with zero floating-point drift and full formula transparency.
UK IR35 Contractor Calculator (Inside vs Outside IR35)
Compare net take-home pay between Outside IR35 (LTD company dividends), Inside IR35 (Umbrella PAYE with Apprenticeship Levy), and standard direct agency PAYE.
UK Statutory Redundancy Pay & Tax-Free ยฃ30k Allowance
Calculate statutory redundancy pay based on age multipliers (0.5x, 1x, 1.5x), ยฃ700 weekly statutory pay cap, 20-year service limit, and ยฃ30,000 tax-free exemption.
UK Statutory Maternity Pay (SMP) & Employer Recovery Calculator
Calculate your 39-week Statutory Maternity Pay (first 6 weeks at 90% average pay, then 33 weeks at ยฃ184.03/week) and check employer HMRC recovery eligibility (92% or 103%).
UK Statutory Sick Pay (SSP) & Waiting Days Calculator
Calculate Statutory Sick Pay (ยฃ116.75 per week) after the 3 unpaid qualifying waiting days, check lower earnings limits (ยฃ123/week), and project up to 28 weeks of entitlement.
UK Statutory Holiday Entitlement & 12.07% Rolled-Up Pay
Calculate statutory holiday entitlement (5.6 weeks / 28 days for full-time), pro-rata allocations for part-time workers, and the 12.07% rolled-up holiday accrual formula for irregular hours.
UK National Minimum & Living Wage Calculator (2025/26)
Verify compliance with the UK National Living Wage (ยฃ12.21/hr for 21+), 18-20 rates, 16-17 rates, and apprentice hourly wages, with accommodation offset deductions.
UK Late Commercial Payment Statutory Interest & Debt Compensation
Calculate statutory interest (Bank of England base rate + 8%) and fixed compensation (ยฃ40, ยฃ70, or ยฃ100 per overdue invoice) under the Late Payment of Commercial Debts Act.
Volumetric Weight (DIM) Calculator
Calculate volumetric weight (DIM) for shipping packages: (L ร W ร H) / divisor.
Profit Margin & Markup Calculator
Calculate gross profit, profit margin percentage, and markup from cost and revenue.
Fuel Cost & Consumption Calculator
Calculate trip fuel cost based on distance, average l/100km consumption, and gas price.
EV Charging Time & Cost Calculator
Calculate EV charging duration and total cost based on battery size and charger kW power.
Product Pricing & Shelf Price Calculator
Determine consumer shelf selling price from unit cost, target margin %, and sales tax / VAT.
Sales Discount & Savings Calculator
Calculate final discounted price and total money saved with percentage and coupon discounts.
Weighted Average Cost (WAC)
Calculate weighted average unit cost of inventory, commodities, or stocks purchased in multiple batches.
Price Increase & Hike Calculator
Calculate new prices after a rate hike, inflation increase, or supplier price markup.
Financial Loss & Deficit Calculator
Calculate total monetary loss and loss percentage when selling goods or assets below cost.
Flight Fare & Travel Cost Estimator
Estimate airfare price, taxes, baggage surcharges, and flight frequent flyer miles based on distance.
Great Circle Distance Calculator (Haversine)
Calculate shortest Great Circle distance between two GPS coordinate points using Haversine formula.
Commerce & Travel What You Need to Know
All tools in Calconova are engineered with institutional financial and scientific formulas. The enterprise decimal.js engine is utilized to eliminate floating-point rounding errors typical of standard JavaScript applications.
All calculations execute directly on your local device (Edge/Client-side); none of your data is stored on remote servers, guaranteeing 100% privacy.
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, or legal advice. Actual HMRC tax bands, National Insurance contributions, Bank of England base rates, and lender criteria may vary. Calconova explicitly disclaims all liability for any decisions taken based upon these calculations. Consult a qualified financial advisor, CPA, or official HMRC documentation prior to executing financial commitments.