Lockdown Savings Calculator

How the calculator measures your savings

The tool breaks down savings into three main categories: commute time, transport costs, and food expenses. It multiplies your weekly commute frequency and distance by the number of lockdown days to estimate fuel or ticket costs avoided. For dining out, it assumes typical meal prices and calculates the difference between your pre-lockdown and lockdown eating patterns. The result shows cumulative savings over your specified lockdown period.

Enter your lockdown dates, commute distance or time, vehicle type (if driving), transport ticket price (if using public transit), and your typical meal frequency before and during lockdown. The calculator handles the rest—including petrol/diesel emissions based on your vehicle's production year and engine type.

Savings calculation formulas

The core calculations depend on your transport mode. For drivers, fuel savings combine distance-based fuel costs plus avoided maintenance. For public transit users, savings reflect the number of journeys times ticket price. Food savings account for the cost difference between restaurant meals, takeaway, and home-cooked lunches. Time savings multiply your daily round-trip commute duration by work days per week across the lockdown span.

• Distance — One-way distance from home to workplace in kilometres
• Average speed — Typical driving speed during your commute in km/h
• Fuel economy — Vehicle fuel consumption in litres per 100 km
• Gas price — Petrol or diesel price per litre in your local currency
• Lockdown days — Total calendar days between lockdown start and end dates
• Days/week — Number of days per week you normally commuted
• Ticket price — Cost of a single public transit fare
• Annual car costs — Other recurring vehicle expenses (insurance, maintenance) per year

Environmental impact of staying home

Beyond your wallet, lockdowns reduce carbon footprints dramatically. Every kilometre not driven saves CO₂ emissions—diesel vehicles emit roughly 23% more than petrol equivalents per litre burned. The calculator estimates your avoided emissions based on your vehicle's engine type and production year, then converts this to an equivalent number of trees needed to offset that carbon.

Public transit users also benefit environmentally, though less dramatically than staying home entirely. A single car journey produces far more emissions per person than a bus or train, even accounting for passenger capacity. The cumulative effect across millions of remote workers can be substantial—clearer air, reduced nitrogen oxides, and measurable atmospheric improvements in cities accustomed to heavy traffic.

Using your time and money wisely

Reclaimed commute hours—potentially 10–30 per week for long-distance travellers—create space for skill development, hobbies, or rest. Cooking at home costs roughly half the price of restaurant meals and improves nutrition. Learning online courses, reading, or creative projects fill time productively. Exercise and outdoor activities replace gym commutes for some workers.

Redirect your savings intentionally: build an emergency fund, invest in quality home equipment, or support local businesses directly rather than via takeaway margins. The temporary nature of most lockdowns means treating savings as bonus cash rather than permanent budget relief.

Common pitfalls when estimating savings

Accurate savings calculations depend on realistic input values.

1. Overestimating fuel savings — Don't forget that stopped engines save no fuel—bumper-to-bumper traffic means your real savings are lower than open-road mileage suggests. Adjust your average speed downward if heavy congestion was normal. Also exclude vehicle payments and insurance when calculating fuel-only savings.
2. Ignoring meal prep time costs — Home cooking saves money but costs time and requires ingredients bought in advance. Bulk meal prep reduces waste but demands planning. Factor in grocery shopping trips—these aren't free either in terms of time or fuel. Not everyone saves on food during lockdown if buying premium ingredients or stockpiling.
3. Forgetting fixed car costs — Some expenses don't pause: insurance, loan payments, and registrations continue regardless of lockdown. Only variable costs (fuel, tolls, parking) and maintenance truly scale with mileage. Calculate honestly what actually stops accumulating when you stay home.
4. Mismatched ticket validity — Public transit passes often have fixed validity periods—weekly, monthly, or annual—unrelated to lockdown length. If your pass covers 30 days but lockdown is 45 days, you might buy 1.5 passes, not a prorated fraction. The calculator needs accurate ticket duration to avoid underestimating costs.